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Diamondbacks Place A.J. Puk On 15-Day IL

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The Diamondbacks announced several transactions in a shake-up of the club’s bullpen mix today.  The headline news is that closer A.J. Puk has been placed on the 15-day injured list (retroactive to April 18) due to inflammation in his left elbow.  Righty Bryce Jarvis and left-hander Joe Mantiply were optioned to Triple-A, and Arizona filled those three bullpen spots by calling up right-hander Drey Jameson, and selecting the contracts of right-handers Juan Morillo and J.P. Feyereisen.  To create roster space, the D’Backs also designated infielder Grae Kessinger for assignment.

Puk excelled after the Diamondbacks acquired him from the Marlins at last year’s trade deadline, and the southpaw has kept going this year by posting a 3.38 ERA in eight innings this season.  Even with the benefit of an absurd 97.6% strand rate, Puk has backed up his work with an excellent 34.3% strikeout rate and 5.7% walk rate.  In addition to all the swings and misses, Puk isn’t allowing much hard contact when his offerings do find a bat, and he has closed out all four of his save chances this season.

Unfortunately, his strong start has now been interrupted by a trip to the IL.  Puk’s lengthy injury history (which includes a Tommy John surgery) puts some extra focus on any elbow-related ailment, though there isn’t any indication at this point that his current issue is anything more than just inflammation.  Assuming no structural damage, Puk might be able to return after just a 15-day minimum, though it is just a matter of how long his elbow discomfort continues to linger.

Justin Martinez is now the likeliest candidate to step up as the new closer, with Shelby Miller and Jalen Beeks continuing in high-leverage setup roles.  Beeks is also the only southpaw in Arizona’s bullpen now that Mantiply has been sent to Reno.

Arizona’s 13-11 slugfest loss to the Cubs yesterday saw both Jarvis and Mantiply charged with three earned runs apiece, with each reliever throwing two-thirds of an inning.  The demotions to Triple-A can allow both pitchers to gather themselves after a difficult start to their seasons, while the D’Backs can get a few fresher arms into the bullpen.  This means Jameson is now in line to make his first MLB appearance since the 2023 season, Feyereisen will make his D’Backs debut after signing a minor league deal with the team in March, and Morillo is set to make his Major League debut after eight pro seasons.

Jameson last pitched in a big league game on July 6, 2023, as he underwent a Tommy John surgery that September that cost him the entirety of the 2024 campaign.  The 34th overall pick of the 2019 draft had posted a 2.63 ERA over 65 innings during the 2022-23 seasons, starting seven of 19 games but pitching mostly in a relief role as the 2023 season developed prior to his UCL injury.  The righty has worked exclusively out of the pen at Triple-A this season, and he has a 2.70 ERA over 6 2/3 innings in Reno while recording 11 strikeouts against zero walks.

Now that he’s back in good health, Jameson can resume his career and perhaps carve out a firm place for himself within Arizona’s bullpen.  He showed quite a bit of promise as a multi-inning reliever, as his past history as a starter gave him some extra durability coming out of the pen.  The D’Backs could look to deploy Jameson as a long man or a swingman, at least letting him get some innings under his belt before perhaps trying him for higher-leverage work.

The 26-year-old Morillo spent his entire career in the Dodgers organization before joining the D’Backs as a minor league free agent back in November.  Making his Triple-A debut this season, Morillo has thrown 6 1/3 innings of 1.42 ERA ball in Reno, with a 29.6% strikeout rate, 7.4% walk rate, and a huge 68.8% grounder rate to boot.  The latter number stands out even amidst Morillo’s history as a groundball pitcher, and the solid walk rate is also noteworthy given his control problems earlier in his minor league career.

Between his high velocity, strikeout potential, and ability to keep the ball on the ground, there’s plenty to like about Morillo if he can find the consistency that has eluded him for a good chunk of his minors career.  He’ll get a chance to show what he can do against MLB hitters during what might be a cup of coffee in the big leagues, depending on how Arizona chooses to align its bullpen beyond just this weekend.

Feyereisen has a 2.95 ERA over his 100 2/3 career innings in the majors, which covers parts of four seasons with the Brewers, Rays, and Dodgers from 2020-24.  Feyereisen had solid numbers in 2021 and looked to be breaking out as a high-leverage reliever in Tampa’s bullpen in 2022 before a shoulder injury resulted in surgery that cost him the entire 2023 season.

Resurfacing in L.A. last year, he had an 8.18 ERA in 11 innings at the big league level, as Feyereisen clearly still had some rust from his long layoff.  His 0.96 ERA in 9 1/3 innings in Reno this season is much more promising, and it was enough to give Feyereisen a shot with another NL West team as he looks to finally establish himself for steady bullpen work.

Kessinger played all over the infield in a backup capacity with the Astros during the 2023-24 seasons, appearing in 48 total games and hitting .131/.243/.213 in 70 plate appearances.  His career Triple-A slash line of .268/.370/.401 is much more impressive on paper, if undermined by the fact that those seemingly solid numbers are barely average in the hitter-friendly Pacific Coast League.

The Diamondbacks acquired Kessinger in a trade in January but he hadn’t yet seen any action on Arizona’s big league roster, and his tenure with the organization might already be over if he is claimed on waivers or traded.  Kessinger’s trade to Arizona in fact came after the Astros designated him for assignment previously, so history could repeat itself if another infield-needy team comes calling.  If Kessinger clears waivers and is outrighted off the 40-man roster, he must accept the assignment since he doesn’t have the MLB service time or a past outright that would allow him to opt into free agency.

Diamondbacks Select Adrian Del Castillo

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2:30pm: The Diamondbacks have officially announced these moves and others. Del Castillo has been selected and Moreno has been placed on the IL with a strained left adductor. They also reinstated left-hander Eduardo Rodríguez from the 60-day IL, a move that was reported last week. To activate Rodriguez, the club optioned right-hander Humberto Castellanos and transferred righty Bryce Jarvis to the 60-day IL. It was also reported last week that Jarvis is unlikely to return this year due to his sprained right elbow.

12:40pm: The Diamondbacks are going to place catcher Gabriel Moreno on the 10-day injured list with a groin injury, per John Gambadoro of Arizona Sports 98.7 FM on X. Fellow backstop Adrian Del Castillo will have his contract selected to take Moreno’s place on the roster. The Snakes already had a 40-man vacancy so no further moves will be required.

Moreno came up limping during yesterday’s game while trying to run out a ground ball. He was removed from the contest with what the team described as a strained left groin. It’s still unclear how long he is expected to be out of action but it’s a rough blow for the Diamondbacks regardless. Moreno is slashing .262/.344/.385 this year for a 107 wRC+ with strong defensive grades as well. FanGraphs considers him to have been worth 2.4 wins above replacement in 86 games.

It’s the second IL stint of the year for Moreno, who also missed some time at the end of June due to a sprained left thumb. Prior to that, he had been sharing the catching duties with Tucker Barnhart, with José Herrera called up to pair with Barnhart in Moreno’s absence. Once Moreno was ready to return in early July, the club decided to keep Herrera around, with Barnhart designated for assignment and eventually released.

That left the Diamondbacks with Moreno and Herrera as the only two backstops on the 40-man roster. Now that Moreno is heading to the IL again, they need to reach into their non-roster depth, which gets Del Castillo up to the majors for the first time.

Now 24 years old, Del Castillo was selected with a competitive balance pick in 2021, going 67th overall in that year’s draft. Baseball America ranked him #29 in Arizona’s system coming into this year but he has launched himself up to #16 in their most recent update. He was #36 at FanGraphs earlier in the year.

BA considers him subpar defensively but strong at the plate, which has shown up at times during his minor league career. That’s especially true here in 2024, which is likely why he earned such a notable bump in the BA rankings. In 100 Triple-A games this year, he has 24 home runs, an 11.5% walk rate and a 16.8% strikeout rate. His .319/.403/.608 batting line translates into a 143 wRC+ even in the hitter-friendly environs of the Pacific Coast League.

If he can bring even a small portion of that production up to the big leagues with him, it will go a long way towards compensating for the loss of Moreno. Herrera has hit just .229/.308/.286 this year for a 72 wRC+ with his glovework graded as near league average. Perhaps Del Castillo can outperform him at the plate but even top prospects can struggle when first exposed to the majors. The club will also have to consider that Herrera has a head start on Del Castillo in terms of building relationships with the pitching staff.

The Snakes are currently 61-52 and essentially in a three-way tie for the National League Wild Card spots with Atlanta and San Diego. Atlanta is 60-51 and percentage points ahead of the two other clubs, who are each 61-52. The Mets are just 1.5 games back of that group and five other clubs are just behind New York. With that crowded playoff race, the importance of every game will be magnified going forward. The catching situation will likely evolve in the coming weeks, depending on how much time Moreno needs to miss and how Del Castillo performs in his first taste of the majors. Herrera is in his final option year and will be out of options in 2025.

Diamondbacks Remove Paul Sewald From Closer Role

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The Diamondbacks are pulling Paul Sewald from the closing role, manager Torey Lovullo announced before tonight’s game against the Pirates (X link via Steve Gilbert of MLB.com). Lovullo did not immediately name a replacement, suggesting the team could go with a committee approach.

Tonight’s game provided an immediate test. Arizona coughed up an early 5-0 lead but bounced back to take a two-run lead into the ninth. Lovullo tabbed sidewinder Ryan Thompson to close it out. Thompson gave up a couple singles and a run but successfully locked down a 9-8 victory. That usage could indicate the sinkerballer will get the bulk of the closing chances, though Arizona needed to use high-leverage arms Kevin Ginkel, A.J. Puk, Dylan Floro and Justin Martinez just to get it to the ninth.

In any case, the Snakes won’t give every narrow ninth inning lead to Sewald. The veteran right-hander had been almost spotless between his early May season debut through the end of June. He carried a 0.54 ERA over 16 2/3 frames. Sewald locked down his first 11 save chances in the process.

Things unraveled for him almost immediately once the calendar turned to July. Sewald gave up multiple runs and blew the lead in each of his first three outings of the month, all of which ended up being Arizona losses. He rebounded with five straight scoreless appearances, but he’s given up runs in three of his four most recent games.

Sewald blew a save in what turned out to be an extra-inning loss to Pittsburgh on Saturday. He got the call on Wednesday to hold a 5-2 lead against the Nationals but put four of five runners aboard (three via walk). Thompson came on and ended up securing a 5-4 win. That’s technically a hold for Sewald but obviously not a good performance.

The nightmarish few weeks came largely out of nowhere. Sewald has been one of the best relievers in MLB since his breakout with the Mariners in 2021. He turned in a 2.88 ERA over parts of three seasons in Seattle. Arizona’s call to send Josh Rojas, Dominic Canzone and Ryan Bliss to the M’s at last year’s deadline added needed stability to the back end of the bullpen.

It ended up being one of the biggest moves in the D-Backs’ surprising pennant run, as Sewald picked up 13 saves with a 3.57 ERA down the stretch. He wasn’t missing quite as many bats as he had in Seattle, but Sewald had a 2.10 ERA with a 25.2% strikeout rate over 34 1/3 innings as a Diamondback until last month. He is an impending free agent, so his performance down the stretch is especially important for him personally.

Arizona made a big deadline move for bullpen help for the second straight year, bringing in Puk for a pair of prospects last month. They swung a more minor deal for Floro minutes before the deadline on Tuesday evening. That gives them some cover to allow Sewald to work through this funk in lower-leverage spots.

The D-Backs are trying to hang onto a Wild Card spot in what remains a crowded National League field. They’re riding a four-game win streak to get a season-high eight games over .500 but are only one game clear of the Mets, the top non-playoff team at the moment.

Two big factors in their potential pennant push: Eduardo Rodriguez and Merrill Kelly. Arizona has been without two of their top starters for the bulk of the season. Rodriguez has yet to make his team debut after sustaining a lat strain in Spring Training. Kelly went down in mid-April with a shoulder strain.

The D-Backs could get a boost from both pitchers. Rodriguez should be reinstated from the 60-day injured list to start next Tuesday’s game against the Guardians, tweets John Gambadoro. Meanwhile, Gilbert relays on X that Kelly is slated to start a rehab stint that same night with High-A Hillsboro. That’d likely kick off a few week rehab process before he’s ready to get back on the mound at Chase Field.

Arizona did get a couple less encouraging updates on the pitching staff, though. Nick Piecoro of the Arizona Republic tweets that reliever Bryce Jarvis is likely to miss the rest of the season with an elbow sprain. The former first-round pick is not expected to require surgery but will need to be shut down from throwing. Jarvis has worked in a low-leverage relief role, tossing 59 1/3 frames of 3.19 ERA ball. His strikeout and walk profile is a lot less impressive than that ERA, but the Duke product has been a bullpen workhorse.

Rookie right-hander Cristian Mena is also likely done for the season. Alex Weiner of AZ Sports reported on Tuesday that the 21-year-old suffered a forearm strain in Triple-A (X link). Mena, who made his MLB debut last month with a three-inning spot start, is on the minor league injured list but could move to the 60-day IL if the Snakes need a 40-man roster spot. The Diamondbacks acquired him over the winter in a one-for-one swap sending outfielder Dominic Fletcher to the White Sox.

D-Backs Promote Jordan Lawlar

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September 7: The Diamondbacks have now made Lawlar’s promotion official, announced that move and Ahmed’s DFA today. They also activated catcher Seby Zavala, claimed off waivers this week, and recalled right-hander Ryne Nelson. Catcher José Herrera and right-hander Bryce Jarvis were optioned in corresponding moves for Zavala and Nelson.

September 6: The Diamondbacks are calling up top infield prospect Jordan Lawlar, reports Nick Piecoro of the Arizona Republic (Twitter link). They’ll presumably make the move official tomorrow in advance of a pivotal four-game series against the Cubs. Arizona is designating Nick Ahmed for assignment in a corresponding move.

Lawlar seems likely to take over as the primary third baseman. Piecoro wrote this afternoon that the Snakes were considering him as an option at the hot corner. Lawlar made his first professional start there with Triple-A Reno last night. That’s obviously a very limited look, but teams generally feel comfortable moving shortstops to other infield positions.

A Dallas native, Lawlar was regarded as one of the top prospects in the 2021 draft class coming out of high school. He somewhat surprisingly lasted until the sixth pick, though Arizona went above slot with the third-highest signing bonus to add him to the system.

Lawlar’s draft season was cut short by an injury to his left shoulder, which required surgery. He didn’t show any signs of rust the following year, though. The right-handed hitter put together a .303/.401/.509 batting line in his first full professional season. He reached Double-A Amarillo late last year, an impressive achievement for a player who had just turned 20 years old.

That huge showing cemented Lawlar’s status as one of the sport’s most talented prospects. Arizona assigned him back to Amarillo to begin the 2023 campaign. He started relatively slowly but has caught fire since the weather warmed up. Lawlar has an OPS north of .900 in the minors for each month since June. He hit .263/.366/.474 in 410 Double-A plate appearances overall to earn a bump to Reno in mid-August. Lawlar has only appeared in 16 games there, mashing at a .358/.438/.612 clip.

While he’s had the benefit of playing in favorable hitting environments, Lawlar’s cumulative .278/.378/.496 line on the year is strong. He’s walking at a quality 11.4% clip against a decent 20.6% strikeout rate. He has popped 20 homers, 23 doubles and four triples and gone 36-41 in stolen base attempts.

Baseball America recently slotted Lawlar as the sport’s #9 overall prospect, while Kiley McDaniel of ESPN placed him 25th. As his numbers indicate, he’s generally viewed as a well-rounded player with solid tools across the board. McDaniel suggests that a lack of a standout carrying tool could keep Lawlar more as a quality regular than a true star. Even if Lawlar doesn’t have quite the same upside as some top prospects, most evaluators seem confident in him being a productive everyday player at the major league level.

Whether that’ll be the case immediately could have an impact on this year’s playoff picture. Arizona beat Colorado this afternoon and remains tied with Miami, half a game behind the Reds for the final NL Wild Card spot. The Cubs occupy the second Wild Card position, so Arizona has a chance to directly make up ground when they head to Wrigley.

There’s risk with any prospect, particularly one who only has a year and a half of minor league reps under his belt. Yet Lawlar brings more offensive upside than Arizona’s current third base mix. The Snakes have used a combination of Jace Peterson, Emmanuel Rivera and occasionally Evan Longoria at the hot corner. While Rivera had played reasonably well early in the season, they’ve gotten almost nothing out of the position lately. Arizona third basemen are hitting .195/.298/.305 since the All-Star Break.

Geraldo Perdomo has also cooled off at shortstop after an All-Star first half. Yet he’s playing well enough overall to keep the hold onto that job, seemingly pushing Lawlar to the other left side infield position for now. It stands to reason Arizona still views Lawlar as a shortstop option if Perdomo gets injured or goes through an extended slump.

He’ll retain his rookie eligibility going into next season. If the D-Backs carry him for a full service year, Lawlar could net them an extra draft choice if he plays well enough to win Rookie of the Year or finish top three in MVP balloting during his pre-arbitration seasons. That’s a much further off possibility. For now, his focus will be on trying to help a young and increasingly exciting Arizona team to the postseason.

Image courtesy of USA Today Sports.

Diamondbacks Select Bryce Jarvis, Designate Carson Kelly for Assignment

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The Arizona Diamondbacks announced several roster moves on Sunday morning, headlined by the promotion of pitching prospect Bryce Jarvis. The Diamondbacks selected his contract from Triple-A Reno, designating catcher Carson Kelly for assignment in a corresponding move. They also reinstated catcher Gabriel Moreno from the 10-day injured list and optioned starting pitcher Ryne Nelson to Triple-A.

Jarvis, Arizona’s first-round pick in the 2020 draft, will be making his MLB debut. He is a top-30 prospect in the D-backs’ system, according to Baseball America (18th) and MLB Pipeline (29th).

The Duke University product made a solid first impression in 2021, tossing 75 1/3 innings across three levels. He had particular success at High-A Hillsboro, posting a 3.62 ERA in seven starts. However, he struggled following his promotion to Double-A Amarillo: his walk rate rose, his home run rate doubled, and his ERA ballooned to 5.66. He remained in Double-A the following season, where his struggles only intensified. Walks and home runs continued to cause him trouble, and his opponents were having more success on balls in play. He finished with a ghastly 8.27 ERA in 25 starts.

Nevertheless, Jarvis earned a promotion to Triple-A in April 2023. Free passes remained a problem for him at Reno, where he walked more than 11% of the batters he faced, but he got his home run rate in check, and his ERA came down to a more respectable 5.40 in 16 starts.

In late July, Jarvis transitioned to a bullpen role, a temporary change to address an area of need within the organization. The 25-year-old told Michael McDermott of Inside the Diamondbacks that there are still “long-term plans” for him to be a starter, but “for the rest of this year,” the team needed him more in the bullpen.

That being that case, it’s unlikely Jarvis will be taking Nelson’s spot in the rotation. With Nelson at Triple-A, the Diamondbacks only have three starting pitchers on the 26-man roster: Zac Gallen, Merrill Kelly, and Brandon Pfaadt. However, Zach Davies is expected to return from the IL shortly, and Slade Cecconi could rejoin the rotation as well. Cecconi, the team’s No. 14 prospect according to MLB Pipeline, made a start on August 2 before moving to the bullpen. He has only made a single appearance out of the ’pen in that time. Prior to his call-up, he made 20 starts at Triple-A Reno, pitching to a 6.38 ERA.

Nelson has been sturdy for Arizona this season; he is tied for third in the National League in starts and 21st in innings pitched. That said, he has a 7.60 ERA and 5.49 SIERA in his last seven starts, and the Diamondbacks have lost five of those seven games. Neither Cecconi nor Jarvis is a surefire upgrade over Nelson, but the D-backs certainly needed to shake things up. Before yesterday’s victory over the Padres, they had lost their last nine games. Their pitching staff has a 4.93 ERA in August, and they have been outscored 46-23.

Moreno’s return should give the pitching staff another much-needed boost. His offensive performance has been underwhelming in his first season with the Diamondbacks, but he has done well behind the dish. His 9 Defensive Runs Saved are tied for fifth among catchers. Meanwhile, his pitch framing doesn’t grade out particularly well (33rd percentile, per Baseball Savant), but he has still been a more valuable framer than Kelly (22nd percentile) and Jose Herrera (3rd percentile), who have covered behind the dish since Moreno hit the IL on July 23.

As for Kelly, 29, it’s not a shock to see him cut from the roster based on his recent results but it’s a significant development from a wider lens. He was once a top 100 prospect with the Cardinals and was one of the prospects that came to Arizona in the Paul Goldschmidt trade, along with Luke Weaver and Andrew Young. The former was flipped to the Royals last year for Emmanuel Rivera, who was optioned to the minors yesterday, while Young was lost to the Nationals in the minor league portion of the 2021 Rule 5 draft.

Kelly was once hoped to be the club’s catcher of the future and he showed well in his first season in the desert. He hit 18 home runs in 2019 and walked in 13.2% of his plate appearances, leading to a .245/.348/.478 batting line and 107 wRC+. But since then, he’s hit just .225/.303/.366, including a line of .226/.283/.298 this year. He could have been retained for one more season via arbitration, owed a raise on this year’s $4.275M M salary, but the D’Backs have decided to move on instead.

Today’s move means that none of the three players from the Goldschmidt trade remain on the roster. The transaction tree is technically still alive thanks to the presence of Rivera, but the deal looks unquestionably disappointing in retrospect. The club will put Kelly on waivers in coming days and he will almost certainly clear, given his salary and recent performance. Since he has over five years of service time, he will have the ability to reject an outright assignment while retaining all of his salary. The Diamondbacks will remain on the hook for that, allowing another club to sign him and pay him only the prorated league minimum, with that amount subtracted from what the Diamondbacks pay.

Diamondbacks Sign First-Round Pick Bryce Jarvis

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The Diamondbacks have signed their top draft pick, 18th overall selection Bryce Jarvis, Nick Piecoro of the Arizona Republic reports. The right-hander agreed to a bonus worth $2.65MM, which comes in well under the recommended slot value of $3.48MM.

Jarvis, the son of former major league righty Kevin Jarvis, was a 37th-round pick of the Yankees a year ago, but he opted against signing. That proved to be a wise decision by the former Duke Blue Devil, who logged a a 2.81 ERA with 12.0 K/9 and 3.7 BB/9 in 150 1/3 innings at the school. Notably, he and Mets righty Marcus Stroman are the only first-rounders Duke has produced to this point.

Jarvis entered the draft as a top 25 prospect according to ESPN’s Kiley McDaniel (No. 21), FanGraphs (No. 23), The Athletic’s Keith Law (No. 24), and MLB.com (No. 25). McDaniel wrote that Jarvis has taken a major step forward of late, owing to increased arm speed and an improved breaking ball. Along with the breaker, the 22-year-old’s repertoire includes a mid-90s fastball and a quality changeup.

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