Mariners Infield Notes: Donovan, Emerson, Bliss
Much of the focus in Mariners camp will be on the infield. Seattle’s biggest offseason moves — re-signing Josh Naylor and trading for Brendan Donovan — addressed two spots. They lost a couple infielders, Jorge Polanco and Eugenio Suárez, to free agency. It’s the biggest area of turnover on what might be the American League’s best roster.
Naylor and J.P. Crawford are locked into first base and shortstop, respectively. Donovan will be an everyday player. He’s a solid defender at second base and can handle the corner outfield as well, though his below-average speed means he fits better on the infield. Ryan Divish of The Seattle Times writes that Donovan’s early work with infield coach Perry Hill has come at third base.
That’s the simplest solution in the short term. Suárez and Ben Williamson, who was traded to Tampa Bay in the three-team Donovan deal, took the majority of the playing time last season. Of the five players who started games at third base in 2025, only Miles Mastrobuoni remains in the organization. Donovan didn’t get any work at the hot corner last year but logged 269 2/3 innings there between 2022-24. Although defensive grades aren’t especially meaningful in that small a sample, he has above-average marks from Defensive Runs Saved and Outs Above Average.
Donovan’s primary role will largely be determined by the progress of younger players around him. Cole Young had a brutal finish to his rookie season, but he remains the favorite to start at second base. Young is a former first-round pick who hit .279/.388/.432 in the minors and is entering his age-22 season. He remains a very promising young player even though he’s not technically a prospect anymore.
20-year-old shortstop Colt Emerson is even more highly regarded. The 2023 first-round pick combined for a .285/.383/.458 batting line with 16 homers and 14 steals over 600 plate appearances across three minor league levels. Emerson walked at a near-12% clip while striking out less than 18% of the time. He spent the majority of the season in High-A but ripped through Double-A to earn a late-season cameo at Triple-A Tacoma. He played six games there in the final week of the regular season.
Emerson is a consensus top 10 overall prospect at Baseball America, The Athletic, ESPN and MLB Pipeline. The likeliest outcome is that he opens the season at Tacoma with an eye towards a midseason promotion. It’d be a surprise if Emerson breaks camp, but the Mariners aren’t completely closing the door on that as Spring Training opens. “It’s not out of the question that he earns a spot on the team,” president of baseball operations Jerry Dipoto told reporters on Thursday (link via Daniel Kramer of MLB.com). Dipoto praised Emerson’s well-rounded skillset and maturity.
The probable Opening Day infield lines up as Naylor, Young, Crawford and Donovan from right to left. Emerson could get consistent reps against Triple-A pitching while building reps at third base, where he has 111 1/3 innings of professional experience. He’s the heir apparent at shortstop when Crawford hits free agency next winter but presumably wouldn’t push the veteran off the position this year. If Emerson has a monster Spring Training that forces the club’s hand, Donovan could kick back to second base and potentially move Young to Triple-A. That shouldn’t be an issue even if Donovan doesn’t play any second base during Spring Training given his ample work at the position.
Last year’s season-opening second baseman, Ryan Bliss, hasn’t gotten as much public attention. Bliss is older and not nearly as highly regarded as Young and Emerson, so that’s natural, but he’s a former second-round pick who hit .269/.377/.456 with 12 homers and 50 stolen bases in Triple-A in 2024. He unfortunately didn’t get much of an opportunity to solidify himself at the MLB level.
Bliss ruptured his left biceps on a swing two weeks into the regular season. He underwent surgery that came with a 4-5 month rehab timeline. Bliss returned to minor league game action in September and had an impressive week in Triple-A. He may well have reclaimed the second base job from Young to close the regular season had he not sustained a meniscus tear in his right knee that required season-ending surgery. Kramer writes that Bliss is back to full health this spring.
It’s a deep infield that’ll only become more crowded whenever Emerson earns the call. Bliss has a couple minor league options remaining. Leo Rivas also has an option but reached base at a .387 clip in 111 plate appearances last season and made the team’s playoff rosters. They flip-flopped Mastrobuoni and Luke Raley as the last hitter off the bench in October.
They’re both out of options, and it’s difficult to see Seattle carrying both players into the season if all their hitters get through camp healthy. They’ll need bench spots for backup catcher Andrew Knizner and righty platoon bat Rob Refsnyder. Keeping Mastrobuoni and Raley would require them to option both Bliss and Rivas before even considering an Emerson promotion. Dipoto acknowledged the likelihood that someone gets squeezed out at the end of Spring Training, conceding the front office may “have to make some uncomfortable short-term decisions.”
Looking At The Mariners’ Internal Infield Options
At the end of the 2025 season, the Mariners lost three infielders to free agency, as each of Josh Naylor, Jorge Polanco and Eugenio Suárez hit the open market. That left shortstop J.P. Crawford as the only lock for the 2026 infield. The M’s quickly pounced to bring Naylor back, signing the first baseman to a five-year, $92.5MM deal not long after free agency began.
Reuniting with Polanco and/or Suárez still seems to be on the table but second and third base are open for now. What options do the Mariners have in the system at present? Let’s take a look at the possibilities.
Young is a former first-round pick, with the M’s taking him 21st overall in 2022. He came into 2025 as a consensus top 100 prospect. He was promoted to the big leagues at the end of May and primarily played second base. He eventually took 257 trips to the plate but produced a tepid .211/.302/.305 line, which translates to a wRC+ of 80.
That’s obviously less than ideal but there are some reasons for optimism. Young’s 10.9% walk rate and 18.3% strikeout rate were both strong. His .247 batting average on balls in play was more than 40 points below league average. His average exit velocity of 87.6 miles per hour was subpar but his max exit velo of 114.1 mph was in the top 10% of major league hitters. Perhaps he can tap into that premium velo a bit more as he gets more exposed to big league pitching. He hit .277/.392/.461 for a 120 wRC+ in Triple-A prior to his promotion, so perhaps his uninspiring major league debut was just a blip.
One year after taking Young, the M’s were selecting one pick later in the first round. They used the 22nd overall pick in 2023 to grab Emerson. He had a big rise in 2025, playing 90 games in High-A, followed by 34 in Double-A and six in Triple-A. Between those three levels, he took 600 trips to the plate and slashed .285/.383/.458 for a 129 wRC+. He also stole 14 bases while primarily playing shortstop, plus a few games at third.
Emerson is now a consensus top 15 prospect in the whole league. His Triple-A experience is still minimal and he’s only 20 years old but the Mariners would presumably have at least some willingness to carry him on the Opening Day roster. MLB teams are generally more willing to do that with top prospects these days because of the PPI benefits. The M’s carried 21-year-old Julio Rodríguez on their roster throughout 2022. When he won Rookie of the Year, that netted the M’s an extra pick in 2023. That allowed them to select outfielder Jonny Farmelo just seven picks after taking Emerson.
The M’s presumably won’t just hand a job to Emerson. He will have to earn it in spring. Theoretically, he could take over third base in 2026. Crawford is slated to be a free agent a year from now, at which point Emerson could potentially move over to short. It’s also possible that Felnin Celesten is more of a factor by then. Celesten is considered a better shortstop defender than Emerson but he hasn’t reached Double-A yet.
Bliss was a second-round pick of the Diamondbacks who came to the Mariners in the 2023 deadline deal which sent Paul Sewald to the desert. His 2025 season was marred by injury. First, a torn left biceps required surgery in April. He began a rehab assignment in August but then suffered a torn meniscus in his right knee. Due to that missed time, he has a .214/.287/.367 line in just 110 big league plate appearances over the past two seasons.
His minor league track record is naturally better than that. Bliss has 739 Triple-A plate appearances with a .260/.365/.453 line and 105 wRC+. He’s also huge threat on the bases with at least 50 steals in the minors in both 2023 and 2024. He has lots of minor league experience at both middle infield positions. He never had the same prospect hype as Young or Emerson but the speed and defense could make him a valuable player with even league average offense.
Williamson was a second-round pick in 2023. He generally put up good minor league numbers but with a pesky contact-based approach and very little power. He got into 85 big league games this year and hit .253/.294/.310 for a wRC+ of 76. There could be more in the bat but Williamson is lauded more for his glovework. Statcast only had him as average in the field this year but he was credited with eight Defensive Runs Saved.
Arroyo, 21, was an international signing out of Colombia and is now a consensus Top 100 prospect. In 2025, he got into 65 High-A games and 56 Double-A contests. Between those two levels, he slashed .262/.401/.433 for a wRC+ of 139. He has a bit of experience at third base and shortstop but was kept exclusively at second base in 2025. Since he hasn’t yet played at the Triple-A level, it’s probably a bit of a reach for him to crack the Opening Day roster, but he might have an outside chance. Even if Opening Day is out of the question, a midseason promotion would be a possibility.
Leo Rivas/Miles Mastrobuoni/Samad Taylor
These three are more in the part-time or utility bucket. Rivas can draw walks but has little power. He can play the three infield spots to the left of first base as well as the outfield corners. He could be on the bench but he also has an option remaining. Mastrobuoni’s minor league profile is somewhat similar but he hasn’t hit in the majors and is now out of options. Taylor has just 83 big league plate appearances and is also out of options. He has big wheels and can also play the outfield, so he could be a nice bench piece who comes in for pinch running and/or defensive substitute opportunities.
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Put it all together and it puts the Mariners in an interesting position. They are clearly in win-now mode. They just finished their fifth straight winning season. They won the West for the first time in over 20 years. They came achingly close to a World Series berth. The Astros and Rangers seem to be dealing with payroll issues. The A’s have some promise but still need to build a pitching staff. The Angels have lots of questions to be answered. The division is there for the Mariners to take.
That should arguably tilt them towards going for established big leaguers such as Polanco or Suárez or whoever else. On the other hand, there’s a chance Emerson is a future star who is ready to go. If he struggles in the spring, Williamson at least gives them a glove-first floor as a fallback. At second base, the M’s could leave it open for Young, Bliss and Arroyo to duke it out. Between the three, they would only need one of them to step forward and seize the job.
In an ideal world, a utility player who can also move to the outfield would make a lot of sense, so perhaps the M’s will make a spirited pursuit of Brendan Donovan. He could play second or third if the younger guys don’t take those jobs. If they do, he could move into the corner infield mix with Victor Robles, Dominic Canzone and Luke Raley. If that also got too crowded, the designated hitter spot is fairly open at the moment. Free agents like Willi Castro or Amed Rosario would be less-exciting versions of the Donovan pick-up.
RosterResource has the club slated for a $151MM payroll in 2026. That’s about $15MM below the $166MM they had at the end of 2025. President of baseball operations Jerry Dipoto recently said that next year’s payroll would probably be in a similar range to the prior season. Like all teams, they could use some pitching upgrades, so it will be fascinating to see how much of their remaining resources they use on the infield.
Photo courtesy of Joe Nicholson, Imagn Images
Mariners’ Ryan Bliss Undergoes Season-Ending Meniscus Surgery
Mariners infielder Ryan Bliss recently sustained a meniscus tear in his right knee, general manager Justin Hollander tells reporters (including Tim Booth of The Seattle Times). He underwent season-ending surgery today.
Bliss is already on the 60-day injured list. Seattle’s Opening Day second baseman suffered a biceps rupture on a swing in the middle of April. He underwent surgery that came with a 4-5 month recovery timeline. Bliss had seemingly made good progress and was healthy enough to begin a rehab assignment with Triple-A Tacoma on August 28. He was hitting .385 over six games there before suffering the meniscus tear.
The 25-year-old Bliss had a slow start to the season. He was batting .200 with a .282 on-base percentage across 11 games. Bliss hasn’t hit much in limited big league playing time, but he had a .269/.377/.456 slash with 50 stolen bases in Tacoma a year ago. The M’s promoted more highly regarded prospect Cole Young to take over second base at the end of May. Young has been mired in a brutal slump since the All-Star Break (.174/.319/.283 in 114 plate appearances). Skipper Dan Wilson has had the 22-year-old on the bench for the past four games. Bliss might’ve been a few days away from retaking the starting second base job.
Instead, the Mariners will continue dividing the playing time primarily between Jorge Polanco and recent call-up Leo Rivas. Polanco is in the lineup every day, but the M’s are reluctant to overwork him on defense as he plays through knee soreness. He’s getting plenty of DH at-bats. The switch-hitting Rivas is in the starting lineup for the third time in four games tonight against St. Louis righty Miles Mikolas. Young remains on the active roster but is out of the lineup for the fifth consecutive game.
The M’s took the final two of a three-game set in Atlanta over the weekend. They’re 1.5 games up on the Rangers for the last Wild Card spot. The Royals and Guardians are also within three games. Seattle trails the Astros by 2.5 games in the AL West picture. They’re back home (where they’ve been far better than on the road over the past two months) for this week’s series against the Cardinals and Angels.
Mariners Select Ben Williamson
The Mariners announced that they have selected the contract of third baseman Ben Williamson. In corresponding moves, outfielder Dominic Canzone was optioned to Triple-A Tacoma, and Ryan Bliss was moved to the 60-day injured list to create space on the 40-man roster.
Since multiple injuries up and down the roster have left the Mariners in need of infield reinforcements, the door was opened for Williamson to earn the first call-up of his three-year career as a professional. Williamson only made his Triple-A debut this season and has hit a modest .281/.317/.333 in 60 plate appearances in Tacoma, but the M’s can’t afford to be too picky given their lack of depth at the big league level.
Williamson was a second-round pick for the Mariners in the 2023 draft, and he has a total career slash line of .281/.366/.389 over 645 PA, with four home runs and 22 steals (in 29 attempts). MLB Pipeline ranks him 13th on their list of Seattle prospects and Baseball America has him 14th, with BA’s scouting report describing Williamson as “a pest at the plate” due to his high contact rates and on-base skills. While Williamson makes a lot of contact, he has lacked in hard contact and in overall power, as evidenced by his uninspiring slugging percentages even at the minor league level.
This may not be the ideal profile for a Mariners team in sore need of consistent hitting, but Williamson does offer immediate defensive help at third base. He is regarded as an excellent fielder who can also chip in at second or shortstop, but the hot corner seems like his natural spot since regular third baseman Jorge Polanco has been limited to DH duty. Williamson is a right-handed hitter that could pair with the lefty-swinging Miles Mastrobuoni in a platoon situation until Polanco is healthy enough to return to the field.
Since the Mariners are reportedly scanning the trade market for other infielders, Williamson might just be in line for a cup of coffee in the majors if Seattle can land some more experienced help elsewhere. Beyond Polanco’s ongoing knee and side discomfort, Luke Raley has now moved from first base to the outfield in the wake of Victor Robles‘ shoulder fracture, and Bliss will miss the next 4-5 months after undergoing surgery to fix a torn left biceps. It was just a matter of time before the Mariners moved Bliss from the 15-day IL to the 60-day IL in order to free up a 40-man roster spot.
Ryan Bliss To Miss 4-5 Months Due To Biceps Surgery
The Mariners today provided an update on infielder Ryan Bliss, who was placed on the 10-day injured list yesterday with a torn left biceps. Today’s announcement relays that an MRI confirmed the severity of the tear and the need for surgery, with an expected recovery timeline of four to five months.
It’s obviously a frustrating development for Bliss and the club. It’s unclear if that timeline includes an eventual rehab assignment or if it will take that long just to begin rehabbing. Either way, he will miss the majority of the campaign even in a best-case scenario and it seems possible that he won’t return in 2025 at all.
For the team, it’s the second big blow to their position player group in the past few days. Víctor Robles has a shoulder fracture and is expected to miss about three months while avoiding surgery, though that timeline could change if surgery eventually is required. Now Bliss is also going to be sidelined for multiple months.
Lack of offense was an issue for them last year and their infield was particularly concerning. Justin Turner and Jorge Polanco became free agents at season’s end, with Josh Rojas non-tendered as well. That left them with J.P. Crawford at shortstop and a few role players or unestablished young guys as candidates for the other spots. There were many offseason rumors surrounding their infield pursuits but they only made a couple of modest moves, bringing back Polanco to play third and signing Donovan Solano to chip in at the corners in a part-time/platoon role.
That left second base open for internal options, including Bliss, a nice opportunity for him. He came into 2025 with just 33 major league games under his belt but some intriguing minor league numbers. Over 2023 and 2024, he produced a combined line of .290/.378/.497 for various minor league clubs. That production led to a wRC+ of 120, indicating he was 20% above league average. He also stole 105 bases in 133 tries. The M’s acquired him from the Diamondbacks as part of the July 2023 trade that sent Paul Sewald to the desert.
Bliss hit just .200/.282/.314 to start this year but in a small sample of just ten games. He won’t be able to adjust that line any time soon. Between him and Robles, the club has to improvise a new lineup around two vacancies. Polanco is battling some knee issues and has been serving as the designated hitter lately. Luke Raley has moved from first base to right field to replace Robles, with Rowdy Tellez taking over at first, platooning with Solano. Dylan Moore, Miles Mastrobuoni and Leo Rivas figure to cover third and second base, at least until Polanco can take the field again. Cole Young is one of the top prospects in the league and could take over the keystone at some point but he is hitting .171/.292/.244 through 11 Triple-A games to start the year.
All clubs deal with injuries but it’s perhaps a little more concerning for Seattle. They didn’t have many resources available for upgrading their lineup this winter, giving them a somewhat narrow margin for error to begin the year. They have now limped out to a 5-8 start and will be without two lineup regulars for multiple months. Bliss should be moved to the 60-day IL whenever the Mariners need a roster spot.
Photo courtesy of Joe Nicholson, Imagn Images
Mariners Put Ryan Bliss On IL Due To Biceps Tear, Designate Jesse Hahn
The Mariners designated right-hander Jesse Hahn for assignment today amid a series of roster moves, per a club announcement. Right-hander Casey Lawrence was selected from Triple-A Tacoma in his place. And, in a concerning bit of injury news, Seattle placed infielder Ryan Bliss on the 10-day injured list due to a torn left biceps. He suffered the tear during a swing in last night’s game. A timeline for his recovery hasn’t been provided, but given the nature of the injury, it seems all but guaranteed that Bliss will be facing a notable absence. Infielder Leo Rivas is up from Tacoma in his place.
Bliss wasn’t off to a roaring-hot start this season, as he’s currently sporting a line of .200/.282/.314. Regardless, the injury further depletes the Seattle infield, which has been an issue for quite a while. All throughout the offseason, they were looking to make notable upgrades to their group on the dirt. Their moves ended up being pretty modest, with Jorge Polanco re-signed and moved from second to third base. Donovan Solano was also signed to be a part-time contributor.
Going into the season, Bliss and Dylan Moore were the top candidates to play second base. Lately, Polanco has been in and out of the lineup due to some soreness in his side, taking the designated hitter spot whenever he’s been healthy enough to play. That has left Moore at third and Bliss at second. Luke Raley has been playing right field to cover for the injured Víctor Robles, opening first base for Rowdy Tellez and the DH spot for Polanco.
It’s less than ideal for a club that has been searching for more offense for a while. The lack of thump in the lineup seemed to be their undoing last year and they weren’t able to make a significant upgrade in the winter. The team has a combined .199/.301/.329 line and 92 wRC+ at the moment and a 4-8 record which has them in the basement of the American League West.
Bliss wasn’t the most essential part of their foundation but it’s another brick removed. Rivas has a .233/.333/.274 line in his big league career but hit .296/.441/.424 in Triple-A last year and is out to a hot start this year, slashing .304/.429/.609 through seven games. He will jump into the infield group though the M’s also have Solano, Moore, Tellez, Polanco and Miles Mastrobuoni in the mix for playing time alongside shortstop J.P. Crawford.
The pitching moves are a reflection of the fact that their recent schedule has been a grind. They lost an 11-inning game on Friday, the first of the six-game stretch, using nine pitchers in that contest. They had fairly regular bullpen usage in the following three games but then had another rough one last night, using seven pitchers in a 12-inning marathon.
With the group fairly taxed overall, they’ve decided to bring in a fresh arm. Lawrence is a 37-year-old who has been called on for such duties before, having worked long relief gigs with the Blue Jays, Cardinals and Mariners in the past. Signed to a minor league deal in the offseason, he’s been pitching in the Triple-A Tacoma rotation to start this year. His last outing lasted 4 2/3 innings on April 4, so he should be able to mop up a few frames today, if needed. After that, it wouldn’t be a surprise to see him bumped off the roster. He is out of options and the Mariners have a much-needed off-day tomorrow.
Hahn, 35, just made it back to the majors a few days ago after a long absence. The M’s selected his contract on April 5, his first time in the bigs since 2021. He has pitched four innings for the M’s since then, including the final two innings of last night’s extra-inning contest. He hasn’t been charged with an earned run yet this year but got a tough L last night when the Manfred Man came around to score in the 12th.
He’s now off the 40-man and will be in DFA limbo for a bit, a week at most. The waiver process takes 48 hours, so the Mariners theoretically have five days to explore trade interest. He has a 4.17 ERA in 315 1/3 bg league innings. He missed 2022 and 2023 due to a shoulder injury then pitched in Triple-A last year with a 4.29 ERA over 50 1/3 innings.
Photo courtesy of Joe Nicholson, Imagn Images
The Mariners’ Second Base Competition
The Mariners spent most of the offseason looking to address the infield. They eventually made a pair of relatively small free agent pickups. Donovan Solano was brought in as a right-handed platoon partner for Luke Raley at first base. Seattle surprisingly re-signed last year’s second baseman Jorge Polanco after the worst season of his career. The M’s are attributing that dip mostly to knee issues that required postseason surgery.
Polanco is moving to third base. That’s an effort to reduce how much he’ll move laterally to hopefully put less stress on his knees. The Mariners needed to do something at third base. Josh Rojas, who’d provided very little offensively after the first month of last season, was non-tendered. Polanco’s return will hopefully provide a boost at the hot corner, but it leaves second base open. There’ll likely be a camp battle between a veteran utilityman, a couple players with limited big league experience, and perhaps one of the organization’s top prospects.
A six-year major league veteran, Moore has easily the most experience of anyone in the competition. He has been a productive role player for Seattle. Moore typically plays in over 100 games per season while bouncing around the diamond. He takes a lot of walks and brings some right-handed pop, but his batting averages have hovered around the Mendoza line. He’s a career .206/.316/.384 hitter. He posted a .201/.320/.367 line with 10 homers and 32 stolen bases across a career-high 441 plate appearances last year.
Park-adjusted metrics like wRC+ and OPS+ had his overall offensive output right around league average — a reflection of how difficult it is to hit at T-Mobile Park. Moore’s splits are stark. He hit .249/.362/.478 away from Seattle but mustered only a .144/.269/.234 slash line at home. He was also far better against left-handed pitching. Moore hit .229/.352/.410 when he held the platoon advantage, compared to a .183/.299/.339 mark against righties.
Daniel Kramer of MLB.com wrote last night that Moore was the frontrunner for the starting job, though the M’s haven’t made a final decision. The 32-year-old has never had one settled position. He played all four infield spots and in left field last year. Moore has logged over 100 career innings at every position aside from catcher. He’s miscast at shortstop and in center field but plays solid defense everywhere else. Both Defensive Runs Saved and Statcast have credited him as an above-average defender in his nearly 1100 career innings at the keystone.
Bliss, 25, is a former second-round pick by Arizona whom the Mariners acquired in the Paul Sewald trade. He’s coming off a strong year at Triple-A Tacoma. The Auburn product hit .269/.377/.456 with 12 homers and 50 stolen bases (albeit with 13 times caught stealing) over 93 games. He drew walks at an excellent 14.1% clip against an average 22.4% strikeout rate. The Mariners called him up in late May.
Over his first 33 MLB contests, the righty-swinging Bliss hit .222/.290/.397. He hit a couple homers and swiped five bases, but he had a tough time making contact. Bliss struck out in 22 of his 71 plate appearances (a 31% rate) with a huge 16.5% swinging strike rate. That was a small sample in his first look at MLB pitching, so some struggles are to be expected, but the M’s optioned him back to Triple-A for the final two months of the season.
Listed at 5’7″ and 165 pounds, Bliss isn’t going to be a prototypical slugger. His average exit velocity and hard contact rate at both the Triple-A and MLB levels were solid, though. He has more power than it might seem at first glance. He’s a good athlete with decent strike zone discipline. The biggest question is whether the bat-to-ball skills will develop enough to make him a regular.
While Moore provides a ton of defensive flexibility, Bliss has a more limited profile. He played exclusively second base in the majors. Bliss has played on the left side of the infield (mostly shortstop) in the minors, but his arm strength is a question. He’s fast enough that the Mariners could eventually get him some work in the outfield, though his professional experience there consists of two minor league games in left field. Bliss still has a pair of options, so he’s likelier to end up back in Triple-A if he doesn’t win the second base job.
Young, 21, was Seattle’s first-round pick in 2022. He has ranked among Baseball America’s Top 100 overall prospects in all three professional seasons. Young has primarily played shortstop in the minors, but he started 37 games at second base with Double-A Arkansas last season. Barring injury to J.P. Crawford, Young figures to break into the majors as a second baseman.
Could that be as soon as Opening Day? President of baseball operations Jerry Dipoto has left the door open. “We are open to the idea that if any of our young players — if we feel like they have the ability to impact us in a meaningful way — show us that this is their time, we’re just going to let them run,” Dipoto said (via Kramer).
Young is coming off a strong Double-A season. He hit .271/.369/.390 with a robust 12.1% walk rate and a modest 15.8% strikeout percentage. While he only hit nine homers, he has an advanced hit tool and plate discipline. BA credits him as a potential plus hitter with fringe power who could play an above-average second base.
The lefty hitter has no Triple-A experience. The conventional path would be for him to begin the season in Tacoma with an eye towards a midseason promotion. That’s the likeliest outcome, but a big performance in Spring Training might accelerate the timeline.
Rivas, a switch-hitter, is likelier to wind up as a depth infielder than a regular. He reached the majors last year for the first time as a 26-year-old, hitting .233/.333/.274 in 43 games. Rivas posted big numbers in Triple-A. He turned in a .296/.441/.424 slash behind a massive 20.7% walk rate. He’ll work plenty of free passes but has limited power. Rivas can play shortstop and is better suited as a utility player. With two minor league options, he’ll likely bounce on and off the active roster.
Seattle acquired the 29-year-old Mastrobuoni in a DFA trade with the Cubs last month. He’s a .219/.279/.263 hitter over parts of three seasons. He’s unlikely to play regularly but could get occasional work around the infield if he holds onto his 40-man roster spot. He still has an option remaining.
Mariners Activate Julio Rodriguez From 10-Day Injured List
The Mariners announced that outfielder Julio Rodriguez has been reinstated from the 10-day injured list. ESPN’s Buster Olney (X link) reported earlier today that Seattle intended to activate Rodriguez in time for tonight’s game with the Mets. Infielder Ryan Bliss was optioned to Triple-A in the corresponding move.
A collision with the outfield wall left Rodriguez with a right high ankle sprain back on July 21, and he was placed on the IL a couple of days later. As recently as yesterday, reports indicated that Rodriguez wasn’t expected to play today, yet the Mariners were considering him day-to-day due to some improvement in his ability to run. Naturally the Mariners aren’t going to take any untoward risks with Rodriguez’s health, but with Seattle in a pitched battle with the Astros for the AL West lead, both Rodriguez and the team had an obvious desire to get him back in action as soon as safely possible.
Rodriguez will be the designated hitter in tonight’s lineup, which could be the team’s most common way to deploy Rodriguez until his ankle is feeling fully ready for regular center field duty. Installing Rodriguez at DH also allows Seattle to keep Victor Robles in center field, as Robles has (surprisingly) been one of the Mariners’ better hitters since he was signed in early June.
The timing couldn’t have been much worse for Rodriguez to hit the IL, as he was sidelined just as his bat was waking up from a season-long slump. Rodriguez struggled to a .244/.294/.324 slash line and seven home runs over his first 364 plate appearances, but he had cracked four homers and posted a 1.219 OPS in the 49 trips to the plate prior to his injury. That hot streak lifted his season-long wRC+ back up to an evenly league-average 100. Rodriguez has also continued to deliver strong defense in center field, but Robles also filled in nicely in terms of glovework.
Mariners Select Jason Vosler
The Mariners announced that they have selected the contract of infielder/outfielder Jason Vosler. Fellow infielder Ryan Bliss was optioned in a corresponding move. There was already a vacancy on the club’s 40-man roster due to right-hander Mike Baumann recently being designated for assignment and traded to the Giants.
Vosler, 30, signed a minor league deal with the M’s in the offseason and has been with Triple-A Tacoma all year so far. In 89 games with the Rainiers, he has hit 20 home runs and drawn walks in 8.4% of his plate appearances, striking out at a 21.6% clip. His .289/.357/.526 batting line amounts to a wRC+ of 113 in the heightened offensive environment of the Pacific Coast League.
Offense has been an issue for the Mariners all year, as they are hitting .218/.299/.367 as a team. That translates to a wRC+ 94, better than just nine clubs in the league. Seattle’s 28% strikeout rate is the worst in the majors by a significant margin, as the Athletics and Rockies are the nearest clubs at 25.7%.
Vosler has been playing the four corner spots this year and those are certainly positions where the Mariners could use some help. First baseman Ty France has a subpar line of .223/.312/.350 and 96 wRC+. The M’s are clearly willing to move on from him as he has reportedly been placed on waivers as the club hopes someone claims him for nothing but cost savings. Josh Rojas has been getting the bulk of playing time at third base and had a hot start but has since cooled, slashing .184/.269/.270 since May 15. In the outfield corners, Víctor Robles and Luke Raley have been doing well but Mitch Haniger is hitting .208/.287/.335 this year.
Ideally, Vosler will come up and give the lineup a boost. He’s played more first base than anywhere else this year and could simply take playing time away from France, who could perhaps wind up in the short side of a platoon. Despite his rough season overall, the righty-swinging France is still hitting .237/.356/.395 against lefties for a 123 wRC+, thanks to drawing walks at a 12.2% rate against southpaws compared to a 6.8% against righties.
Vosler hits from the left side and could perhaps shield France from right-handers. Vosler has slashed .303/.364/.590 against righties this year compared to .253/.339/.364 against lefties. But his defensive versatility will also give Scott Servais some flexibility in how he gets him into the lineup.
This will be Vosler’s third big league team of his career, as he has 97 games of experience with the Reds and Giants. He’s hit just .210/.279/.408 in the majors but has generally fared better at the Triple-A level. He has one option season remaining and can be sent down to the minors later without being exposed to waivers. He also has less than a year of service time and can stick around for a while if he puts up some decent numbers.
Mariners Select Ryan Bliss
The Mariners announced they’ve selected infielder Ryan Bliss onto the MLB roster. Second baseman Jorge Polanco is headed to the 10-day injured list with a right hamstring strain. To open a spot on the 40-man roster, the M’s recalled Sam Haggerty and placed him on the major league 60-day IL.
It’s the first major league call for the 24-year-old Bliss. The Diamondbacks picked the 5’7″ middle infielder in the second round of the 2021 draft out of Auburn. Bliss rebounded from a tough first full professional season with a breakout 2023 campaign. The right-handed hitter raked at a .358/.414/.594 clip with Arizona’s Double-A affiliate. He earned a call to the Futures Game last summer and was involved in a significant trade not long thereafter. The D-Backs packaged him to Seattle alongside Josh Rojas and Dominic Canzone for closer Paul Sewald.
That wasn’t the most popular trade in the M’s clubhouse at the time, and the second-guessing only got louder when Seattle narrowly missed the playoffs last season. Sewald, meanwhile, stabilized a shaky bullpen in the desert to help Arizona to a surprising World Series berth. The Mariners have gotten good work from both Rojas and Canzone through the first two months of 2024, though. Bliss now joins them on the big league roster.
Bliss finished last season with the M’s top affiliate in Tacoma, hitting .251/.356/.466 over 47 games. He has similar numbers through 50 contests with the Rainiers this year. Bliss owns a .247/.382/.445 batting line through 229 plate appearances. He has walked at a massive 17% clip against a manageable 21.8% strikeout percentage. Bliss has already stolen 28 bases in 34 tries and has reasonable power numbers (seven homers, nine doubles and three triples).
While his slight frame limits his raw power upside, Bliss offers a well-rounded profile that could make him a viable everyday player. He has split his time about evenly between the middle infield spots this year. Prospect evaluators have generally preferred him at second base rather than shortstop because of his fringe arm strength.
That’s where he’ll slot in during his first MLB look. J.P. Crawford has shortstop secure, but Polanco has played sparingly in recent days because of hamstring discomfort. Acquired as part of an overhauled Seattle offense, the longtime Twin has slumped to a .195/.293/.302 showing to begin his Mariner tenure. The M’s plugged Luis Urías into the lineup when Polanco missed a few games two weeks ago. Seattle optioned him last week and will give Bliss a look at second base instead of the more experienced Urías, another offseason pickup who has only hit .152/.264/.316 in 34 games.
The M’s essentially had an open 40-man roster spot after Haggerty suffered a season-ending Achilles tear last week. That occurred in Tacoma, so the outfielder initially went on the minor league injured list. He’ll spend the rest of the season on the MLB IL, where he’ll pick up major league service. Haggerty should narrowly cross the four-year service threshold and would likely be in line for another salary in the realm of this year’s $900K if the Mariners tender him a contract next offseason.