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Keynan Middleton

White Sox Select Keynan Middleton, Place Joe Kelly On IL, Outright Jonathan Stiever

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The White Sox announced Monday that they’ve placed right-hander Joe Kelly on the 15-day injured list due to a groin strain and selected the contract of right-handed reliever Keynan Middleton. Right-hander Jonathan Stiever was outrighted in order to open a 40-man spot for Middleton. Stiever hasn’t been previously outrighted and doesn’t have three years of MLB service time, so he can’t reject the assignment. He’ll remain with the organization now that he’s cleared waivers.

Middleton, 29, signed a minor league deal over the winter and didn’t initially win a spot in Chicago’s bullpen, pitching to a 6.00 ERA in nine spring innings. He’s opened the year in Charlotte with a trio of scoreless frames, punching out three of the 11 batters he’s faced and also walking a pair.

The White Sox will be Middleton’s fourth big league club. He spent the first four seasons of his career with the Angels, looking at one point like a potential building block in the relief corps in Anaheim. Middleton debuted with 58 1/3 solid innings back in 2017 (3.86 ERA, 25.6% strikeout rate, 7.3% walk rate) and showed a high-octane fastball that averaged 97 mph.

Middleton started the 2018 season with an even stronger 2.04 ERA in 17 2/3 frames but saw diminished velocity while his strikeout and walk rates trended in the wrong direction. He was placed on the injured list in May with what the team discovered some damage in his ulnar collateral ligament. He underwent Tommy John surgery just a few days later. That wiped out the remainder of his 2018 season, and while Middleton returned with a clean 1.17 ERA in 7 2/3 innings the following year, he walked more hitters (seven) than he struck out (six) and was working with a fastball sitting at 94.2 mph.

In the three seasons since, Middleton’s velocity has fluctuated greatly, but his results with the Halos, Mariners and D-backs have been similarly below par. Overall, since returning from Tommy John surgery, the right-hander carries a 4.66 ERA with a 19% strikeout rate and 11.9% walk rate that are both worse than the league average. In the aggregate, his post-TJS fastball has sat at 95.6 mph, but that includes year-to-year averages that are all over the map: 94.2 mph in 2019, 97.2 mph in 2020, 95.6 mph in 2021 and 94.8 mph in 2022. Along the way, he’s encountered biceps, elbow and ankle injuries.

As for the 34-year-old Kelly, he’s gotten out to a rough start, yielding three runs on four hits and a walk through his first 2 2/3 innings of the 2023 campaign. He’s playing out the second season of a two-year, $17MM contract that hasn’t panned out as either he or the White Sox hoped. Biceps and hamstring injuries limited the former Red Sox and Dodgers hurler to 37 innings last year, during which he posted an unsightly 6.08 ERA with a career-worst 13.5% walk rate. He’ll now head to the injured list for the third time in just over one calendar year with the South Siders.

Kelly, of course, has a much better track record prior to his time with the ChiSox. From 2017-21, he tossed 229 innings of 3.62 ERA ball, and he was a postseason hero for the 2018 Red Sox, tossing 11 1/3 innings of one-run ball with a 13-to-0 K/BB ratio in the postseason during their march to an eventual World Series title.

Stiever, 26 next month, is a 2018 fifth-rounder who ranked among the White Sox’ best prospects from 2020-21 but has seen his stock tumble in recent seasons, in part due to health troubles. Stiever underwent lat surgery late in the 2021 season and spent nearly the entire 2022 campaign on the 60-day injured list as a result. He’s appeared in just 6 1/3 MLB innings, allowing 10 runs on 11 hits (four homers) and four walks in that time.

Because of those injuries and the lost 2020 minor league season, Stiever still has just 252 minor league innings under his belt. Seventy-nine of those have come at the Triple-A level, but he’s been tagged for a 5.47 ERA in that time. All but five of those 79 frames came during an ugly 2021 season, and Stiever has tossed a pair of scoreless innings so far to begin his ’23 season. He’ll remain in Triple-A and hope that better health brings about better results. If so, he could conceivably work his way back into the 40-man roster conversation at some point.

White Sox Sign Keynan Middleton To Minor League Deal

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The White Sox have signed right-hander Keynan Middleton to a minor league deal, according to his transactions tracker at MLB.com. He’ll presumably receive an invitation to major league Spring Training.

Middleton, 29, was drafted by the Angels and spent the first few seasons of his career there. He seemed to be establishing himself as a quality relief option in 2017 and 2018, making 80 appearances over those two seasons with a 3.43 ERA. Unfortunately, he required Tommy John surgery midway through the latter campaign, putting him out of action for over a year.

The righty returned to the mound late in 2019 but has struggled over the past few years. He made 13 appearances in the shortened 2020 season but with a 5.25 ERA. The Angels non-tendered him after that but he secured a major league deal from the Mariners for 2021. The change of scenery didn’t help much, with the righty posting a 4.94 ERA over 32 appearances that season.

After a couple of rough seasons, Middleton had to settle for a minor league deal with the Diamondbacks for 2022. He pitched well enough in the minors to get back into the big leagues, but his 18 appearances for Arizona resulted in a 5.29 ERA. He did reduce his walk rate to 4.3% after being much higher in the preceding campaigns, but his strikeout and ground ball rates were both subpar. He also allowed five home runs in that brief time, matching his total from the four previous seasons combined. He was cut from the roster in November and became a free agent again.

Middleton will now look to get back on track after a rough few years. Despite some poor results, he does average over 95 mph on his fastball, placing him in the 74th percentile of qualified pitchers, according to Statcast. If he can claw his way back onto the club’s roster, he won’t be able to be optioned to the minors without his consent since he has over five years of MLB service time.

A’s Claim Yonny Hernandez From Diamondbacks

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The Athletics announced that they have claimed infielder Yonny Hernandez off waivers from the Diamondbacks. Additionally, the club has outrighted infielder Nate Mondou, left-hander Sam Selman and righties Austin Pruitt, Norge Ruiz, and Collin Wiles. The Diamondbacks also announced the claim of Hernandez, while relaying that infielder Jake Hager and right-hander Keynan Middleton cleared waivers and elected free agency.

This is one of the times on the baseball calendar when roster turnover is high, for a couple of reasons. First, there is no injured list between the World Series and Spring Training, meaning that players on the 60-day IL will soon be retaking their spots. Secondly, the deadline to add prospects to the 40-man roster in order to protect them from being selected in the Rule 5 draft is November 15. Those two factors both combine to squeeze certain players off rosters and onto waivers.

Hernandez, 25 in May, had spent all of his career in the Rangers organization until being traded to the D-Backs in April. He got into 12 MLB games this year, spending much more time in the minors. He hit .241/.349/.324 in 71 Triple-A games this year, wRC+ of 78. That’s not an especially impressive showing, but Hernandez fared much better in previous seasons and has always had good plate discipline. Despite the rough year, he still walked in 11.7% of his plate appearances and struck out in just 15.8% of them, with both of those numbers being much better than average. He’s never hit for much power though, having only hit five home runs in a minor league career that dates back to 2015. He still has options, meaning the A’s can keep him in the minors next year and try to see if they can draw something extra out of him.

Mondou, 28 in March, was just selected to the roster in October. He made his MLB debut by getting into one game where he made three hitless plate appearances, walking once and striking out once. In 108 Triple-A games, he hit .283/.374/.431 for a wRC+ of 105. Given his seven years of minor league experience, he will be eligible to elect free agency five days after the World Series.

Selman, 32 this month, has thrown 73 MLB innings over the past four seasons. He has a 4.81 ERA in that time with a 22.5% strikeout rate, 10.3% walk rate and 29.6% ground ball rate. He cut his walk rate to 6.7% in 2022 but also gave up four home runs in just 18 1/3 innings, leading to a 4.91 ERA. He’s eligible to elect free agency by virtue of having been previously outrighted in his career.

Pruitt, 33, signed a minor league deal with the A’s for 2022 and was twice selected to the roster with one DFA in between. He got into 55 1/3 innings on the season and registered a 4.23 ERA. His 17% strikeout rate was below average but he limited walks to a 4% rate and also got grounders on 45.5% of balls in play. He’s eligible to elect free agency both on account of his previous outrights and more than three years of service time.

Ruiz, 29 in March, was once a high-profile signing out of Cuba but saw his stock fade in recent years. A switch from starting to relieving in 2019 seemed to give him a boost, leading to him getting to make his MLB debut in 2022. He tossed 19 innings with a 7.11 ERA, though a .413 batting average on balls in play could indicate there’s some bad luck in there. He had a much nicer 3.73 ERA in 41 Triple-A innings. He should stick with the A’s as depth but without taking up a roster spot.

Wiles, 29 in May, got the call to the big leagues for the first time in September. He was able to log 9 2/3 MLB innings while putting up a 4.66 ERA in that small sample. He worked as a starter in the minors, logging 143 1/3 Triple-A innings with a 5.40 ERA. He limited walks to a 4.3% rate but was undone by 27 long balls in the hitter-friendly Pacific Coast League.

Hager, 30 in March, appeared in 28 big league games for Arizona this year, hitting .240/.345/.280 in that time for a wRC+ of 84. He had fairly similar results in 72 Triple-A games, adding a bit more pop but walking less. He’s eligible to elect free agency based on the fact that he’s been previously outrighted in his career.

Middleton, 29, has appeared in each of the past six seasons, spending time with the Angels and Mariners before suiting up with the Diamondbacks in 2022. He tossed 17 innings in the majors and another 17 in Triple-A this year, with better results in the minors. He had a 5.29 ERA in the bigs along with a 2.12 ERA for Reno. He is eligible to elect free agency both because of he has more than three years of MLB service time and a previous career outright.

IL Placements: Brubaker, Middleton

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Catching up on some injured-list transactions around baseball…

  • The Pirates placed right-hander JT Brubaker on the 15-day injured list, retroactive to September 16.  Right-hander Luis Ortiz was called up to take Brubaker’s spot on the active roster.  Brubaker was officially listed as sidelined due to right arm inflammation, though lat soreness was given as the reason for his early exit from Thursday’s game, when he lasted just three innings.  Over 141 1/3 innings and 27 starts for the Bucs this season, Brubaker has a 4.58 ERA and some unimpressive Statcast numbers, though his SIERA is a more favorable 3.95.  His ability to eat innings could put him in the conversation for a spot in Pittsburgh’s rotation next season, even if he doesn’t make it back for one more start in 2022.
  • The Diamondbacks placed right-hander Keynan Middleton on the 15-day IL due to a sprained left big toe.  Righty Luis Frias was called up from Triple-A in the corresponding move.  The toe sprain will likely end what has been an injury-plagued season for Middleton, who missed a couple of months due to elbow inflammation and a right ankle sprain.  Between the injuries and time in the minor leagues, Middleton was limited to 17 innings in 18 appearances with the D’Backs, and he posted a 5.29 ERA over that rather small sample size.  Now in his sixth MLB season, Middleton has yet to regain the early promise of his first two seasons with the Angels, before Tommy John surgery sidelined him in 2018.  He inked a minors deal with the D’Backs last winter and probably seems likely to be back on the open market this offseason in search of another non-guaranteed deal.

Diamondbacks Select Wilmer Difo, Designate Noe Ramirez

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The Diamondbacks announced they’ve selected infielder Wilmer Difo onto the big league roster. They’ve also reinstated relievers Keynan Middleton and Kyle Nelson from the 15-day injured list. To create space on the active and 40-man rosters, Arizona designated right-hander Noé Ramirez for assignment.

Difo gets his first MLB crack of the year, reaching the big leagues for what’ll be an eighth straight season. A switch-hitting middle infielder, Difo has decent contact skills but doesn’t offer much in the way of power production. He’s a .251/.313/.355 hitter in exactly 1300 MLB plate appearances split between the Nationals and Pirates, with the vast majority of that time coming in Washington. Difo has ample experience all throughout the infield, and he’s generally rated well in the eyes of public defensive metrics as a shortstop.

It’s been a similar story in Triple-A Reno this year. The 30-year-old has logged plenty of action at shortstop and third base, and he’s compiled a .269/.311/.398 line over 306 trips to the plate. Difo has struck out in just 13.4% of his plate appearances, but his lack of extra-base impact has been glaring in one of the more hitter-friendly environments in affiliated ball. He’ll nevertheless get a look on the strength of his glove, offering manager Torey Lovullo a defensive specialist off the bench for the stretch run. Difo will be arbitration-eligible this winter and could be kept around for next season, although he’s a likelier non-tender candidate given his journeyman status and below-average offensive showing in Triple-A.

Nelson and Middleton have each missed over a month dealing with injuries: back spasms for Nelson, an ankle strain for Middleton. The former has made 38 appearances during his first season in the desert, working to a sparkling 1.57 ERA in 34 1/3 innings but only striking out 20.5% of opponents. The latter has only pitched 12 times, pitching to a 1.64 ERA with a 25% strikeout rate in 11 frames.

With Nelson and Middleton returning to the bullpen, the D-Backs had to cut one of their incumbent pitchers. (Teams must devote one of the two extra roster spots in September to a position player). The veteran Ramirez finds himself as the odd man out after posting a lackluster 5.22 ERA through 50 innings. Ramirez has punched out 23.7% of batters faced on a solid 11.8% swinging strike percentage, but he’s also walked batters at an alarming 12.1% clip.

The 32-year-old Ramirez spent most of last season in Arizona as well. He signed a minor league deal after being released by the Angels and made the big league roster in June. Ramirez impressed enough down the stretch the D-Backs agreed to bring him back on a $1.25MM salary. They weren’t prepared to do so again this winter, and they’ll now place him on waivers in the next couple days.

If no other team wants to assume the remaining $240K on his contract, Ramirez is likely to head to the open market. He has more than five years of major league service time, giving him the right to refuse an outright assignment in favor of free agency while still collecting the remainder of his guaranteed salary.

Diamondbacks Place Ian Kennedy On 15-Day IL

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The Diamondbacks placed right-hander Ian Kennedy on the 15-day injured list due to right calf inflammation.  The club also announced that Keynan Middleton was called up from Triple-A Reno to take Kennedy’s place on the active roster.

Kennedy had to make a quick departure from Sunday’s game due to the injury, and was scheduled to undergo an MRI today.  While the specifics of that MRI result aren’t known, things were obviously serious enough for the D’Backs to put Kennedy on the injured list.

A timetable isn’t yet known about when Kennedy could return, though even if he is able to get back on the mound after the 15-day minimum, he won’t have much time to audition for possible trade suitors.  The 35-44 Diamondbacks are looking like sellers at the August 2 trade deadline, and Kennedy (signed to a one-year, $4.75MM deal in March) is a logical candidate to be moved as a rental player.

Since becoming a full-time reliever prior to the 2019 season, Kennedy has sandwiched two solid years around an injury-plagued 2020 campaign.  This year in Arizona, the 37-year-old has a 3.58 ERA over 27 2/3 innings, but with plenty of unfavorable Statcast metrics.  The righty’s 10.4% walk rate is his highest since 2009, and his 20% strikeout rate is well below the league average.

Kennedy’s trade value could be a moot point if his injury continues to linger throughout July.  However, given his track record, there is a chance a team could look past both his health issues and his poor advanced metrics and swing a deal with the D’Backs, even if Arizona might end up still eating the bulk of Kennedy’s remaining salary.

Diamondbacks Place Mark Melancon On Injured List, Select Keynan Middleton

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The D-Backs announced they’ve placed closer Mark Melancon on the injured list. His placement was without a designation, indicating it’s related to COVID-19. Keynan Middleton was selected to take his place on the roster. Additionally, Arizona recalled Caleb Smith from Triple-A Reno and optioned southpaw Tyler Holton.

Melancon is the second Arizona reliever lost to the COVID list in as many days. The Snakes also placed J.B. Wendelken on the IL yesterday. Placement on the list can indicate a positive test, viral symptoms or exposure to a person who has tested positive. It isn’t clear whether Melancon has tested positive.

Middleton signed a minor league deal over the offseason. The righty has appeared in each of the past five MLB seasons, spending his career with the Angels and Mariners. Middleton had some strong numbers early on with Los Angeles, but he’s struggled since undergoing Tommy John surgery in 2018. Last season, he tossed 31 innings of 4.94 ERA ball, only striking out 17.1% of batters faced while walking 13.6% of opponents.

Assigned to Reno to open the year, the 28-year-old has made seven appearances. He’s worked 7 1/3 frames of one-run ball, punching out nine while allowing five hits and three walks. That promising start will earn him another chance in the big leagues.

Diamondbacks Sign Braden Bishop, Keynan Middleton To Minors Deals

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The Diamondbacks recently signed outfielder Braden Bishop and reliever Keynan Middleton to minor league contracts, according to Chris Hilburn-Trenkle of Baseball America. Both players had qualified for minor league free agency at the end of last season after clearing outright waivers during the year.

Bishop has spent the entirety of his big league tenure with the Mariners. A 3rd-round pick in the 2015 draft, the speedy center fielder reached the majors in 2019. He’s tallied 99 cumulative plate appearances over the past three seasons, hitting .133/.188/.156. Seattle designated Bishop for assignment in May, and he landed with the Giants on waivers. Within days of claiming him, San Francisco DFA’d the right-handed hitter themselves, and on that occasion he passed through unclaimed.

Despite putting up an impressive .326/.388/.549 line across 320 trips to the plate with the Giants’ top affiliate from that point forth, Bishop didn’t make it back to the majors. The 28-year-old will try to play his way back into the big leagues with their division rivals in Arizona. The D-Backs have a glut of young outfielders on the 40-man roster, but none of Daulton Varsho, Stuart Fairchild, Pavin Smith, Cooper Hummel or Jake McCarthy has yet gotten settled at the major league level.

Middleton has pitched in the majors in each of the past five seasons. He’d spent his entire career in the AL West, beginning as a third-round pick of the Angels in 2013. He pitched for four years in Anaheim, including a 3.43 ERA in 80 appearances over his first two seasons. Middleton underwent Tommy John surgery midway through the 2018 campaign, however, and he wasn’t as effective upon his return from that procedure.

Cut loose by the Angels last offseason, the right-hander latched on with the Mariners (where he and Bishop briefly overlapped). Middleton worked 31 innings across 32 appearances with Seattle but didn’t find a ton of success, posting a 4.94 ERA with worse than average strikeout and walk numbers (17.1% and 13.6%, respectively).

Recent struggles aside, it’s easy to see why the D-Backs would take a no-risk shot on Middleton in hopes he can rediscover some of his early form. The 28-year-old still averaged 95.6 MPH on his fastball last year. Perhaps of more interest, Middleton generated swinging strikes on a very strong 14.2% of his offerings — a surprisingly high number given his low strikeout rate. Arizona relievers had a 5.08 ERA and ranked dead last in strikeout/walk rate differential (9.7 percentage points), so Middleton should have a good chance at cracking the roster with a strong showing in Spring Training.

Players Recently Electing Free Agency

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We’ve seen dozens of players elect minor league free agency over the past couple weeks, and that has continued to be the case in recent days. We’ll round up a few more players who are hitting the open market here, courtesy of the Triple-A transactions trackers.

Players can qualify for minor league free agency in a few ways. The most notable of these include: players with 3+ years of MLB service time who have been outrighted off their teams’ 40-man rosters this season, players who have been outrighted off a 40-man roster multiple times in their careers, and unsigned players not on a 40-man roster who have spent parts of at least seven seasons on a minor league roster or injured list.

Each of this group of players has hit the market within the past week and not yet been covered at MLBTR:

Mariners Place Jake Fraley, Anthony Misiewicz On 10-Day Injured List

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The Mariners made a handful of roster moves today. They placed Jake Fraley on the 10-day injured list with right shoulder inflammation. Anthony Misiewicz was also placed on the injured list because of a left forearm strain.

Fraley has made headway this season in making himself a big league outfielder, slashing .213/.359/.388 in 220 plate appearances, making his season thus far worth 1.5 rWAR. Misiewicz, meanwhile, has made 54 appearances covering 46 1/3 innings. He has a 4.08 ERA/3.32 FIP, 24.1 percent strikeout rate, 5.6 percent walk rate, and 44.9 percent groundball rate.

To fill their roster spots, Wyatt Mills was recalled from Triple-A, and Jimmy Yacabonis had his contract selected. To make room on the 40-man roster, Shed Long was transferred to the 60-day injured list. Long went on the injured list on July 30, so he’s very likely done for the year. Keynan Middleton was also outrighted to Triple-A Tacoma.

Yacabonis will make his first appearance in the bigs since last year when he made two appearances with the Mariners. For his career, he owns a 5.71 ERA/6.05 FIP across 104 innings, mostly with the Orioles from 2017 to 2019. The 29-year-old right-hander has been sharp in Triple-A this season, tossing 31 1/3 innings with a 1.74 ERA. He will provide the Mariners with some length out of the bullpen should they need it.

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