Middleton was reassigned to minor-league camp by the White Sox on Monday, Daryl Van Schouwen of the Chicago Sun-Times reports.
Middleton inked a minor-league contract back in January but was unable to earn himself a spot on the Opening Day roster. He'll serve as bullpen depth after making 18 appearances a season ago with the Diamondbacks, posting a 5.29 ERA and 1.12 WHIP with a 15:3 K:BB across 17 frames.
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White Sox's Keynan Middleton: Links up with ChiSox
Rotowire
Middleton (toe) signed a minor-league contract with the White Sox on Sunday.
Middleton is moving on to a new organization after splitting the 2022 campaign with the Diamondbacks and their Triple-A affiliate in Reno. Before missing the final three weeks of the season with a sprained left big toe, Middleton posted a 5.29 ERA, 1.12 WHIP and 15:3 K:BB in 17 innings with Arizona. Presumably back to full health, Middleton could get the chance to compete for a spot in the White Sox's Opening Day bullpen, but he's more likely to open the campaign at Triple-A Charlotte.
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Diamondbacks' Keynan Middleton: Scrubbed from 40-man roster
Rotowire
Arizona outrighted Middleton (toe) to Triple-A Reno on Nov. 3.
Middleton lost his spot on the 40-man roster heading into the start of free agency after turning in a 5.29 ERA and 1.12 WHIP in 17 innings with the big club in 2022. He finished the season on the 15-day injured list with a sprained left big toe, but the injury shouldn't be anything that affects his availability for spring training.
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Diamondbacks' Keynan Middleton: Out with toe sprain
Rotowire
Middleton was placed on the 15-day injured list Sunday, retroactive to Sept. 17, with a sprained left big toe.
Middleton has surrendered seven runs across his past three outings and will now be unavailable for at least the next couple weeks. The 29-year-old is eligible to return in early October for the final few games of the season, though Arizona could instead opt to shut him down.
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Diamondbacks' Keynan Middleton: Reinstated from injured list
Rotowire
Middleton (ankle) was reinstated from the 15-day injured list Thursday.
Middleton was sidelined for just over a month due to a right ankle strain, but he began a rehab assignment in late August and struck out nine in four scoreless innings over four minor-league appearances. The right-hander should serve mainly as a middle reliever now that he's been deemed fully healthy.
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Diamondbacks' Keynan Middleton: Moves rehab to Triple-A
Rotowire
Middleton (ankle) struck out two over a perfect inning of relief Tuesday in his rehab appearance for Triple-A Reno.
Middleton was cleared to move his rehab assignment to Triple-A after he tossed a scoreless inning in his initial outing in the rookie-level Arizona Complex League over the weekend. The right-hander, who has been on the 15-day injured list since July 26 with a strained right ankle, could stick around at Triple-A through the weekend before Arizona activates him.
Middleton (ankle) threw 38 pitches in a live batting practice session Friday.
Middleton landed on the injured list after he was forced to leave a game July 25 against the Giants with a right ankle strain. Arizona manager Torey Lovullo said the reliever "felt good" following Friday's session and added a progression for the right-hander has yet to be determined. The manager said Middleton will probably eventually throw in the rookie-level Arizona Complex League.
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Diamondbacks' Keynan Middleton: Out with ankle injury
Rotowire
Middleton was placed on the 15-day injured list Tuesday with a right ankle strain.
Middleton presumably suffered the injury during Monday's appearance against the Giants, when he recorded two outs and hit a batter. The right-hander will be sidelined for at least the next 15 day, and Chris Devenski was promoted in a corresponding move.
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Diamondbacks' Keynan Middleton: Called up by Diamondbacks
Rotowire
Middleton was called up from Triple-A Reno on Monday, Jody Jackson of Bally Sports Arizona reports.
Middleton will take the place of Ian Kennedy (leg), who was placed on the injured list in the corresponding move. Middleton tossed four scoreless frames over his last five big-league appearances, but don't expect him to occupy a prominent role in Arizona's bullpen.
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Diamondbacks' Keynan Middleton: Reinstated, sent down Friday
Rotowire
Middleton (elbow) was reinstated from the 15-day injured list and optioned to Triple-A Reno on Friday.
Middleton made a relief appearance in Reno on Thursday, and he struck out one in a scoreless inning. However, the right-hander will remain with the minor-league club now that he's healthy after Taylor Widener was called up Friday.
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Diamondbacks' Keynan Middleton: Out with elbow inflammation
Rotowire
Middleton was placed on the 15-day injured list with right elbow inflammation after Game 1 of Tuesday's doubleheader against the Dodgers.
Middleton presumably suffered the injury during his last appearance Monday, when he walked one batter during a scoreless inning. It's unclear exactly how long he'll be sidelined, but given it's an elbow injury, an absence beyond the 15-day minimum wouldn't be surprising.
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Diamondbacks' Keynan Middleton: Takes loss in season debut
Rotowire
Middleton (0-1) took the loss Sunday versus the Cardinals. He allowed two runs on two hits and struck out two in two-thirds of an inning.
Middleton allowed an inherited runner to score on Harrison Bader's two-run home run. He also allowed a solo shot to Nolan Arenado. This was an unimpressive season debut for Middleton, who had shown promise with Triple-A Reno with a 1.17 ERA and 1.11 WHIP in 7.2 innings before his contract was selected Friday. The right-hander had a 4.94 ERA and 1.58 WHIP in 31 major-league innings with the Mariners last year, so he shouldn't be expected to see many premium opportunities while on the Diamondbacks' roster.
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Diamondbacks' Keynan Middleton: Contract selected
Rotowire
Middleton's contract was selected from Triple-A Reno on Friday.
Middleton owns a career 3.84 ERA in 126.2 major-league innings, though that mark sits at 5.02 across 43.0 frames since the start of the 2020 season. He'll give Arizona another bullpen option with Mark Melancon landing on the COVID-19 injured list.
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Diamondbacks' Keynan Middleton: Reassigned to minor-league camp
Rotowire
Middleton was reassigned to minor-league spring training Thursday.
Middleton tossed three scoreless innings across four relief appearances this spring, but he was unable to secure a spot in the Diamondbacks' bullpen to begin the regular season. The right-hander made 32 appearances (one start) for Seattle last year, and it wouldn't be surprising to see him return to the big leagues at some point in 2022.
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Mariners' Keynan Middleton: Outrighted to minors
Rotowire
The Mariners outrighted Middleton to Triple-A Tacoma on Saturday, Corey Brock of The Athletic reports.
The righty went unclaimed on waivers after being designated for assignment Thursday. With a 4.94 ERA in 31 innings this season, Middleton has pitched well enough to get another opportunity with Seattle if injuries create an opening in the bullpen.
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Mariners' Keynan Middleton: Optioned to Triple-A
Rotowire
Middleton was optioned to Triple-A Tacoma on Wednesday.
Middleton rejoined Seattle's bullpen on June 24, but he had inconsistent results since the All-Star break. The righty posted a 7.88 ERA and 2.88 WHIP in eight innings across his last nine appearances and will attempt to get back on track with the minor-league club. Casey Sadler was reinstated from the paternity list to take his place in the bullpen.
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Mariners' Keynan Middleton: Takes loss in extra innings
Rotowire
Middleton (0-2) was tagged with the loss in relief Friday against the Yankees after giving up an unearned run on one hit and one walk while striking out one across two-thirds of an inning.
Middleton pitched the bottom of the 11th inning and while he intentionally walked Rougned Odor, he also recorded two outs when he retired Gleyber Torres and Kyle Higashioka. However, he allowed the walkoff RBI when Brett Gardner singled to center, scoring Joey Gallo. Middleton hasn't been a reliable presence out of the bullpen for the Mariners of late and has given up runs in five of his last seven appearances.
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Mariners' Keynan Middleton: Tagged with loss as opener
Rotowire
Middleton (0-1) took the loss Wednesday, surrendering five runs on five hits and a walk over one inning in a 6-3 loss to the Rockies. He struck out one.
Deployed as an opener for the first time in his big-league career, Middleton looked decidedly uncomfortable in the role as Colorado smoked a barrage of line drives off the right-hander, with the biggest blow being a bases-loaded double by Dom Nunez. Middleton now has a 10.38 ERA for Seattle since the beginning of June, managing only a 4:4 K:BB through 8.2 innings in that time, and he'll remain in a low-leverage role until he can find some consistency.
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Mariners' Keynan Middleton: Opening Wednesday
Rotowire
Middleton will start Wednesday's game against the Rockies, Ryan Divish of The Seattle Times reports.
Middleton will make the first start of his major-league career while serving as the opener in the series finale at Colorado. The right-hander has given up one run over 5.2 frames since returning from the injured list in late June. Chris Flexen is likely to work as the primary pitcher Wednesday.
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Mariners' Keynan Middleton: Impressive since return to majors
Rotowire
Middleton owns a 1.93 ERA across the 4.2 innings covering his four appearances since being recalled from Triple-A Tacoma on June 24.
Middleton has been able to carry over the momentum he generated during his latest stint with the Rainiers, posting a trio of scoreless efforts since his return to the big-league club. The right-hander has made some fantasy impact this season with four saves and three holds, but his 16:11 K:BB across 23 innings does have ample room for improvement.
