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1:45Highlights: Reds at Tigers (6/14)
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1:26MLB Trade Deadline: Moves Tigers Should Make to Solidify World Series Contention
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1:45MLB Power Rankings: Top 3 Matchup Begins Tonight in LA
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1:01Tigers Tarik Skubal Coming off Complete Game
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0:54Highlights: Giants At Tigers
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0:54Highlights: Giants at Tigers (5/28)
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0:56MLB Power Rankings: Four AL Central Teams in Top 14 of Rankings
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8:57Must-Add Waiver Wire Options! AJ Smith-Shawver or Gunnar Hoglund?
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1:59Highlights: Tigers at Angels (5/2)
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8:58Bullpen Mayhem & Logan Gilbert Replacements!
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8:57Week 6 Sleepers & Two-Start Pitchers!
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11:03Add Reese Olson or Andrew Heaney?
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1:16Highlights: Padres at Tigers (4/23)
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1:43Highlights: Yankees at Tigers (4/8)
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8:45Are These Four Players Breaking Out?
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0:24Spencer Torkelson Cranks 2-Run, Walk-Off Double For Tigers
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9:30Week 3 Sleepers & Two-Start Pitchers!
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9:44David Bednar Optioned, Closer Carousel & Casey Mize's Strong Start!
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10:27Opening Day Overreactions! MacKenzie Gore, Bullpens & More!
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0:57MLB Playoff Predictions: American League Division Champs
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2025 Pitching
| STATS |
W
Wins
|
L
Losses
|
ERA
Earned Run Average
|
SO
Strikeouts
|
BB
Base on Balls (Walk)
|
WHIP
Walks and Hits Allowed Per Inning
|
|---|---|---|---|---|---|---|
| Regular Season | 0 | 1 | 5.23 | 8 | 5 | 1.45 |
Top Sean Guenther News
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Tigers' Sean Guenther: Sidelined at Triple-A
Triple-A Toledo placed Guenther on its 7-day injured list May 30 due to an unspecified injury.
The southpaw reliever posted a 5.23 ERA and 1.45 WHIP in 10.1 innings over nine appearances for Detroit before being optioned to Triple-A on May 23. He made just two appearances for Toledo before hitting the shelf with an injury.
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Tigers' Sean Guenther: Optioned to Triple-A
The Tigers optioned Guenther to Triple-A Toledo on Friday, Evan Petzold of the Detroit Free Press reports.
Guenther has yielded seven runs (six earned) with an 8:5 K:BB over 10.1 innings with the big club this season. He's clearing out to make room on the roster for the return of Matt Vierling (shoulder).
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Tigers' Sean Guenther: Drawing opener assignment
Guenther will serve as the Tigers' opening pitcher for Monday's game against the Cardinals, Chris McCosky of The Detroit News reports.
Guenther will draw his first MLB start Monday, though he hasn't covered more than two innings in any of his nine appearances between the big club and the minors this season and is unlikely to work deep into the contest. Keider Montero is slated to cover the bulk of the innings out of the bullpen once Guenther exits the game.
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Tigers' Sean Guenther: Logs two scoreless innings Sunday
Guenther tossed two scoreless innings of relief in Sunday's 7-0 win over the Orioles. He allowed one hit and struck out three.
After starter Tarik Skubal tossed six scoreless innings, Guenther followed it up with two scoreless frames of his own. It was only the second MLB appearance of the year for the lefty reliever, who was recalled from Triple-A Toledo on Friday and dealt with a back injury earlier in the season. Guenther was effective in 2024 for the Tigers, posting a 0.86 ERA across 21 regular-season innings, and he could see his role grow if he continues to pitch well out of the bullpen.
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Tigers' Sean Guenther: Recalled from Triple-A
The Tigers recalled Guenther from Triple-A Toledo on Friday, Evan Woodbery of MLive.com reports.
He's absorbing the roster spot vacated by Bailey Horn, who was optioned to Toledo on Thursday. Guenther got a late start to the season due to lumbar spine inflammation, but he's being summoned after allowing three runs over his first 3.1 innings in the minors.
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Tigers' Sean Guenther: Starting rehab assignment
Guenther (back) will begin a rehab assignment with Single-A Lakeland on Thursday, Evan Woodbery of MLive.com reports.
Guenther has been on the 7-day injured list all season with Triple-A Toledo due to lumbar spine inflammation. He'll eventually move up to Toledo once deemed ready and could help the Tigers' bullpen at some point later this season.
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Tigers' Sean Guenther: Working way back from spinal injury
The Tigers announced Wednesday that Guenther, who was placed on Triple-A Toledo's 7-day injured list March 28 due to lumbar spine inflammation, is scheduled to throw a bullpen session Friday, Cody Stavenhagen of The Athletic reports.
Detroit optioned Guenther to Triple-A on March 17 after he failed to secure a spot in the Opening Day bullpen, but he wasn't known to be dealing with an injury until Toledo deactivated him to begin the season. While the fact that he's in line to step back on the mound Friday suggests he's making progress in his recovery, the reliever probably won't be ready to make his season debut for Toledo until late April at the soonest.
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Tigers' Sean Guenther: Sent to minors
Guenther was optioned to Triple-A Toledo on Monday, Chris McCosky of The Detroit News reports.
Guenther gave up seven earned runs in 3.2 innings this spring. His demotion clears the way for Brant Hurter to make the team as the second lefty out of the bullpen.
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Tigers' Sean Guenther: Likely to reprise role
Guenther has a good chance to make Detroit's bullpen coming out of spring training, Jason Beck of MLB.com reports.
Guenther saw some work with the Tigers down the stretch last season and pitched well, turning in a 0.86 ERA and 0.52 WHIP across 21 innings. The lefty could now parlay that into an Opening Day bullpen role if he has a strong spring training. Guenther would likely see low-leverage opportunities in the early going, though he could seize a larger role at some point if he continues to impress.
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Tigers' Sean Guenther: Recalled from Triple-A
The Tigers recalled Guenther from Triple-A Toledo on Thursday.
Guenther made one relief appearance with the Tigers earlier this month, allowing one earned run over 1.1 innings of work. The left-hander will likely be with the big club only for a few days until Alex Faedo is back from paternity leave.
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Tigers' Sean Guenther: Heads back to Triple-A
The Tigers optioned Guenther to Triple-A Toledo on Sunday.
He'll cede his spot on the active roster to lefty Brant Hurter, who was called up from Triple-A in a corresponding move and is expected to work in bulk relief behind opening pitcher Alex Faedo in Sunday's game against the Royals. Following his promotion from Toledo on Thursday, Guenther made one appearance out of the Detroit bullpen, giving up an earned run on one hit and two hit batsmen over 1.1 innings.
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Tigers' Sean Guenther: Summoned from minors
The Tigers selected Guenther's contract from Triple-A Toledo on Thursday, Cody Stavenhagen of The Athletic reports.
Guenther is one of the arms being added as the Tigers replace some pitchers they traded away earlier this week. The lefty holds a 3.86 ERA and 46:14 K:BB across 44.1 innings with Toledo this season. He has not made an appearance in the majors since 2021.
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Tigers' Sean Guenther: Healthy again at Double-A
Guenther (elbow) has made two relief appearances for Double-A Erie since being activated from the 7-day injured list May 29, covering two innings and striking out a batter while allowing one earned run on three hits and one walk.
Guenther opened the season on Erie's IL while he continued his recovery from the Tommy John surgery he underwent last April. Approximately 13 months after going under the knife, Guenther made his return to game action May 9, when he he began a rehab assignment with Single-A Lakeland. After six appearances at Lakeland, the Tigers saw enough from Guenther to advance him to their Double-A affiliate.
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Tigers' Sean Guenther: Outrighted to Triple-A
Guenther (elbow) cleared waivers and was outrighted to Triple-A Toledo on Tuesday.
The 27-year-old finished the season on Detroit's 60-day injured list but won't be added back to the 40-man roster for the offseason. Guenther underwent Tommy John surgery in April and is likely to miss at least the first half of the 2023 campaign.
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Tigers' Sean Guenther: Throwing off flat ground
Guenther (elbow) has resumed throwing off flat ground from 75 feet and is expected to be ready to pitch off a mound by the end of spring training, Evan Petzold of the Detroit Free Press reports.
After scooping Guenther up off waivers from the Marlins on Nov. 2, the Tigers immediately moved him to the 60-day injured list. He'll likely remain on IL for much of the first half of the 2023 campaign, as he's in the early stages of his throwing progression following his Tommy John surgery last April.
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Tigers' Sean Guenther: Scooped up by Detroit
The Tigers claimed Guenther (elbow) off waivers from the Marlins on Wednesday.
Detroit will immediately move Guenther to its 60-day injured list, where he'll open the 2023 season while he continues to recover from the Tommy John surgery he underwent in April. The 26-year-old southpaw's lone big-league action to date came in 2021, when he yielded a 9.30 ERA and 2.02 WHIP in 20.1 innings out of the Miami bullpen.
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Marlins' Sean Guenther: Undergoes Tommy John surgery
Guenther underwent Tommy John surgery Thursday, Jordan McPherson of the Miami Herald reports.
Reports emerged last week that Guenther would need surgery, though exactly what type of procedure he'd need wasn't specified. Tommy John surgery rules him out for all of this season plus a fair portion of next year as well.
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Marlins' Sean Guenther: Placed on 60-day IL
Guenther (arm) was placed on the 60-day injured list Sunday, Christina De Nicola of MLB.com reports.
Guenther was diagnosed with an arm injury recently that will likely require surgery, and the southpaw will be unavailable for at least the first two months of the regular season. He made his major-league debut last year and posted a 9.30 ERA and 2.02 WHIP in 20.1 innings across 14 relief appearances. It's not yet clear when he'll be able to return to game action.
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Marlins' Sean Guenther: May need surgery
Guenther is dealing with an arm injury which will likely require surgery, Christina De Nicola of MLB.com reports.
The nature of Guenther's injury and his potential surgery are not yet clear, but he's been ruled out of contention for the Opening Day roster and will begin the season on the injured list. While the Marlins would certainly prefer him to be healthy, he wasn't shaping up to be a major part of the team's plans, as he struggled to a 9.30 ERA while striking out just 14.6 percent of opposing batters in his 20.1-innings debut last season.
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Marlins' Sean Guenther: Shelved with back injury
The Marlins placed Guenther on the 10-day injured list Sunday with an upper-back strain, Christina De Nicola of MLB.com reports.
Guenther's move to the IL clears a spot on the active roster for pitcher Pablo Lopez (shoulder), who was reinstated from the 60-day IL ahead of his scheduled start Sunday against the Phillies. Over 14 relief appearances with Miami spanning 20.1 innings, Guenther was lit up for 21 earned runs on 31 hits and 10 walks.
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Player Bio
| HT/WT: 5-11, 194 lbs |
| Birthplace: Atlanta, GA |
| Age: 29 |
| Experience: 2 |
| Bats/Throws: L, L |