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8:27Top-12 Starting Pitchers for 2026!
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1:05How Josh Naylor Signing Impacts First Base Market
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1:03Examining Mariners Approach For Rest Of Offseason
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1:35Mariners To Re-Sign Josh Naylor To 5-Year Deal
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10:43Early 2026 Outfield Rankings Part 1! How High on Buxton & Springer?
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1:32Cal Raleigh: MLBPA 2025 Players Choice Player Of The Year
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11:11Cal Raleigh Joins CBS Sports HQ
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1:59Cal Raleigh Left On Deck In The 9th After JRod Strikeout
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1:51Blue Jays Sound Off After Advancing To World Series
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1:58The Mariners One Costly Mistake In Game 7
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1:55Mariners Sound Off After Game 7 Loss
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1:37Springer's Late Game Heroics Lift Blue Jays To World Series
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1:12Blue Jays Need To Perform On The Road Against The Dodgers
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1:23What Look Forward To From World Series Matchup Between Blue Jays and Dodgers
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0:48Blue Jays The Best Matchup For The Dodgers?
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4:16ALCS Highlights: Mariners at Blue Jays - Game 7
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1:54Can the Mariners Take Game 7 & Make It to Their 1st World Series?
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2:00Trey Yesavage Almost Unhittable in Win Over Mariners
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1:49Blue Jays Overpower Mariners to Force Game 7
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1:01Matt Snyder's Unfiltered Message to Mariners
Top Cooper Criswell News
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Mariners' Cooper Criswell: Bound for Seattle
The Mets traded Criswell to the Mariners on Friday in exchange for cash, Jorge Castillo of ESPN.com reports.
The 29-year-old was DFA'd by the Mets on Wednesday following the team's acquisition of Freddy Peralta and Tobias Myers, but Criswell will recapture a 40-man spot upon moving to Seattle. He posted a 3.57 ERA and 1.58 WHIP in 17.2 regular-season innings with the Red Sox in 2025 and will compete for a spot in the Mariners' bullpen during spring training.
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Mets' Cooper Criswell: DFA'd by Mets
The Mets designated Criswell for assignment Wednesday, Anthony DiComo of MLB.com reports.
Criswell will end up as the roster casualty necessary to create space on the Mets' 40-man following the acquisition of Freddy Peralta and Tobias Myers from Milwaukee on Wednesday. Criswell made seven regular-season appearances with the Red Sox last year, during which he logged a 3.57 ERA and 1.58 WHIP across 17.2 innings. If he passes through waivers unclaimed, he will likely spend the majority of 2026 at Triple-A Syracuse with a chance to make an occasional appearance in the majors.
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Mets' Cooper Criswell: Claimed off waivers by Mets
The Mets claimed Criswell off waivers from the Red Sox on Friday, Jorge Castillo of ESPN.com reports.
Criswell had been designated for assignment following Boston's five-player trade with Pittsburgh on Thursday. The 29-year-old has been a useful swingman for the Red Sox the last two seasons, holding a 4.00 ERA and 82:36 K:BB over 117 innings covering 19 starts and 14 relief appearances. Criswell does not have minor-league options remaining but is not yet arbitration-eligible, so the Mets will have several years of control of the righty.
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Red Sox's Cooper Criswell: Designated for assignment
The Red Sox designated Criswell for assignment Thursday, Chris Cotillo of MassLive.com reports.
The Red Sox re-signed Criswell to a one-year contract in early November, but he'll lose his roster spot less than one month later. He spent the majority of the 2025 season with Triple-A Worcester and should have the chance to contribute as a reliever at some point in 2026 if he sticks with the organization.
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Red Sox's Cooper Criswell: Re-signs with BoSox
Criswell signed a one-year, $800,000 contract with the Red Sox on Thursday, Robert Murray of FanSided.com reports.
Criswell appeared in seven games for Boston in 2025, finishing the regular season with a 3.57 ERA and 1.58 WHIP through 17.2 innings. He put up similar numbers at Triple-A Worcester (3.70 ERA, 1.35 WHIP) before elbow inflammation put an early end to his season in late August. The 29-year-old righty doesn't have any more minor-league options remaining, so he will have to make the Red Sox's Opening Day roster to avoid losing his 40-man spot.
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Red Sox's Cooper Criswell: Placed on IL at Triple-A
Criswell was placed on the 7-day injured list by Triple-A Worcester on Wednesday due to right elbow inflammation, Chris Cotillo of MassLive.com reports.
Criswell has spent most of the 2025 season at Triple-A but has appeared in seven games (one start) with the Red Sox, logging a 3.57 ERA, 1.59 WHIP and 9:5 K:BB across 17.2 innings of work. He owns a 4-2 record, 3.70 ERA, 1.34 WHIP and 68:28 K:BB across 65.2 innings at Triple-A and will now be unavailable for at least the next week.
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Red Sox's Cooper Criswell: Dispatched to Triple-A
The Red Sox optioned Criswell to Triple-A Worcester on Saturday.
Criswell fired seven innings of one-run ball Friday against the Astros, but he'll end up as the roster casualty necessary to make room for Dustin May in Boston's rotation. Criswell sports a 3.57 ERA through 17.2 innings with the Red Sox this season and would likely be the next man up if any of Boston's starters need to miss time down the stretch.
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Red Sox's Cooper Criswell: Goes seven strong in spot start
Criswell did not factor into the decision in Friday's 2-1 extra-inning win over the Astros, allowing one run on seven hits and two walks with four strikeouts over seven innings.
Criswell allowed just a solo homer in the second inning and otherwise kept the Astros in check, needing only 84 pitches to complete seven strong frames in his first start and seventh major-league appearance of the season. The 29-year-old now owns a 3.57 ERA, 1.58 WHIP and 9:5 K:BB across 17.2 innings with the Red Sox, though Friday's outing was likely just a spot start with Dustin May in line to take the fifth spot in the team's rotation.
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Red Sox's Cooper Criswell: Starting Friday vs. Astros
Criswell will start Friday's game against the Astros, Chris Cotillo of MassLive.com reports.
The right-hander was called up from Triple-A Worcester on Tuesday and will step into Boston's rotation to fill the spot vacated by Richard Fitts' demotion earlier this week. Criswell, who's worked out of the bullpen in each of his six MLB appearances this year, has a 5.06 ERA, 1.78 WHIP and 5:3 K:BB over 10.2 innings. The 29-year-old righty may be in line for just a spot start, as the newly acquired Dustin May is scheduled to start Sunday's series finale and could stick as the fifth member of the rotation over Criswell moving forward.
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Red Sox's Cooper Criswell: Receives promotion
The Red Sox recalled Criswell from Triple-A Worcester on Tuesday, Chris Cotillo of MassLive.com reports.
Criswell will provide some much-needed length in the Boston bullpen after starter Richard Fitts lasted only four innings in Monday's loss to the Twins before being optioned to Triple-A in a corresponding move. The 29-year-old righty has made six relief appearances with the Red Sox in 2025, allowing nine runs (six earned) with a 5:3 K:BB over 10.2 frames. Criswell had been starting at Triple-A could be a candidate to enter the rotation the next time Fitts' turn in the rotation comes up during this weekend's series versus the Astros.
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Red Sox's Cooper Criswell: Returns to Triple-A
The Red Sox optioned Criswell to Triple-A Worcester on Thursday.
Criswell will return to Worcester after he was called up to serve as the Red Sox's 27th man Wednesday while Boston and Cincinnati resumed a suspended game from Tuesday before playing the series finale. He was expected to work in bulk relief in the second game of the day, but the Red Sox used five other pitchers before Criswell was called upon to record the final five outs of their 8-4 win. He kept the Reds off the board and gave up two hits during his appearance, bringing his ERA and WHIP to 5.06 and 1.78, respectively, through 10.2 innings with the big club.
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Red Sox's Cooper Criswell: Expected to be 27th man Wednesday
Red Sox manager Alex Cora said that Criswell will likely be recalled from Triple-A Worcester to start Wednesday's game versus the Reds following the completion of a suspended game, Jen McCaffrey of The Athletic reports.
Brayan Bello had been scheduled to start the regularly scheduled contest, but he will be handed the ball in the earlier suspended game instead. That leaves Criswell -- who will added as the 27th man -- to start the nightcap, although it's possible an opener is used ahead of him. Criswell would be pitching on three days' rest after going five innings and throwing 87 pitches Saturday for Worcester, so he'd likely have a truncated workload against Cincinnati.
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Red Sox's Cooper Criswell: Serving as bulk reliever
The Red Sox recalled Criswell from Triple-A Worcester on Wednesday, Jen McCaffrey of The Athletic reports.
Criswell will serve in a bulk-relief role behind opening pitcher Brennan Bernardino in Wednesday's game versus the Reds. The right-hander went five innings and threw 87 pitches Saturday for Worcester, so he won't have a normal starter's workload Wednesday while pitching on short rest. Since Criswell is being designated as the Red Sox's 27th man for the day after Boston and Cincinnati resumed Tuesday's suspended game earlier Wednesday, he's expected to head back to Triple-A immediately after the contest.
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Red Sox's Cooper Criswell: Shuttled back to Worchester
Criswell was optioned to Triple-A Worcester on Saturday.
Criswell has bounced back and forth between Boston and Worcester this season and made two appearances during his most recent stint in the majors. He threw three innings Friday against the Yankees, so the Red Sox will option him and get a fresh arm for their bullpen.
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Red Sox's Cooper Criswell: Back in big leagues
The Red Sox recalled Criswell from Triple-A Worcester on Tuesday, Gabrielle Starr of the Boston Herald reports.
The Red Sox need some length in their bullpen after Richard Fitts recorded just three outs Monday against the Angels. Criswell has been rocked for eight runs (five earned) over 4.1 innings during his time with Boston this season but has collected a 1.52 ERA while being used primarily as a starter at Worcester.
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Red Sox's Cooper Criswell: Goes back to Triple-A
The Red Sox optioned Criswell to Triple-A Worcester on Sunday.
Criswell served as the 27th man for Saturday's doubleheader with the Orioles but went unused in both contests. The right-hander hasn't made an appearance for the Red Sox or Worcester since May 8, but he could be a candidate to make a spot start or work as a bulk reliever for Boston against the Brewers on Tuesday, when the team will need to break in a temporary sixth member of the rotation due to a stretch of six games in five days.
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Red Sox's Cooper Criswell: Up as 27th man
The Red Sox added Criswell to their active roster to serve as the 27th man for Friday's doubleheader against Baltimore, Ian Browne of MLB.com reports.
Criswell hasn't performed well with the Red Sox this season, allowing five earned runs in only 4.1 innings, but he owns a 1.99 ERA across 22.2 frames at Triple-A Worcester. He'll give Boston some extra bullpen depth for Friday's twin bill but is likely to return to the minors following the second game.
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Red Sox's Cooper Criswell: Returns to Triple-A
The Red Sox optioned Criswell to Triple-A Worcester on Friday, Chris Cotillo of MassLive.com reports.
The right-hander was called up by Boston on Wednesday and will return to Triple-A without seeing game action. Criswell appeared in three games for the Red Sox at the start of the season and gave up five earned runs over 4.1 frames, though he's been dominant in Worcester's rotation with a 1.99 ERA in five outings.
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Player Bio
| HT/WT: 6-6, 200 lbs |
| Birthplace: Carrolton, GA |
| Age: 29 |
| Experience: 5 |
| Bats/Throws: R, R |








