Olson (finger) will begin a rehab assignment with Triple-A Toledo on Saturday, Evan Woodbery of MLive.com reports.
Olson has been sidelined since May 19 due to right ring finger inflammation, but he's made enough progress with his throwing program to test himself in a game setting. General manager Jeff Greenberg said Sunday that he's "cautiously optimistic" that Olson will return from the injured list "sooner rather than later," though he may require multiple appearances at Triple-A before being cleared to join the big-league rotation.
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Tigers' Reese Olson: Completes side session
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Olson (finger) threw a bullpen session Saturday without issue, MLB.com reports.
Olson didn't throw his changeup during the session, as his inflamed right ring finger is still preventing him from using his full arsenal in workouts. That said, general manager Jeff Greenberg noted Sunday that he's "cautiously optimistic" that Olson will return from the injured list "sooner rather than later." Olson could be ready to mix in his changeup during his next throwing session, and if that goes well, he could advance to facing hitters in live batting practice.
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Tigers' Reese Olson: Receives injection for finger
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Olson received an injection to address the inflammation in his right ring finger Monday and is expected to resume playing catch Thursday, Chris McCosky of The Detroit News reports.
The right-hander landed on the shelf with the injury May 19, and the inflammation apparently returned after he was briefly shut down from throwing. Olson is without an official timeline for his return but will likely be out for at least a couple more weeks as he ramps his throwing program back up.
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Tigers' Reese Olson: Set for another side session
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Olson (finger) was scheduled to throw another bullpen session Saturday, Chris McCosky of The Detroit News reports.
Olson has now thrown a pair of bullpen sessions within the past four days as he continues to ramp back up after being placed on the injured list May 19 due to right ring finger inflammation. Though the right-hander doesn't look to be in line for an extended stay on the IL, he'll still need to face hitters in live batting practice and potentially complete a brief minor-league rehab assignment prior to being activated.
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Tigers' Reese Olson: Bullpen session on tap
Rotowire
Olson (finger) is scheduled to throw a bullpen session Wednesday, Evan Woodbery of MLive.com reports.
He threw off flat ground for the first time Thursday and will advance his rehab Wednesday with a bullpen session. Olson has been out since May 17 with right ring finger inflammation.
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Tigers' Reese Olson: Resumes throwing
Rotowire
Olson (finger) threw on flat ground Thursday, Chris McCosky of The Detroit News reports.
Thursday marks the first time Olson has done any sort of throwing since he landed on the injured list Monday due to inflammation in his right ring finger. The right-hander is confident he won't need to spend much more than the 15-day minimum on the IL, though he'll need to start throwing off a mound soon for that to be a realistic possibility.
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Tigers' Reese Olson: Goes on IL with finger injury
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The Tigers placed Olson on the 15-day injured list Monday with right ring finger inflammation, Chris McCosky of The Detroit News reports.
It's not clear when or how Olson was injured, but he showed no signs of being hurt his last time out Saturday against the Blue Jays, tossing six scoreless innings. The timing is poor, as the right-hander has logged a 1.60 ERA, 0.95 WHIP and 38:11 K:BB through 33.2 innings over his last six starts. Olson will be eligible for activation June 2, but it's uncertain whether he'll be ready on that date.
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Tigers' Reese Olson: Strong start wasted Saturday
Rotowire
Olson came away with a no-decision in Saturday's 2-1 loss to the Blue Jays, scattering one hit and one walk over six scoreless innings. He struck out six.
The right-hander faced only one batter above the minimum and didn't let a Toronto runner get past first base in his third quality start of the season, but Olson saw his fifth win of the year slip away when the Detroit bullpen fell apart late. He's blanked the opposition in four of his last six trips to the mound, posting a 1.60 ERA, 0.95 WHIP and 38:11 K:BB through 33.2 innings over that stretch. Olson will look to keep rolling in his next start, which lines up to come at home next week against the Guardians.
Olson (4-3) took the loss against the Rangers on Sunday, allowing three runs on seven hits and one walk with five strikeouts over four innings.
Olson surrendered a two-run homer in the second inning, and then yielded another run in the third. It was the 25-year-old's shortest outing of the season, as he generated only eight whiffs on 83 pitches and dealt with frequent traffic on the basepaths. He'll carry a 3.38 ERA, 1.29 WHIP and 45:18 K:BB across 42.2 innings into a road matchup with the Blue Jays next weekend.
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Tigers' Reese Olson: Cruises to fourth win
Rotowire
Olson (4-2) got the win over the Angels on Sunday, tossing 5.2 scoreless innings while allowing three hits and three walks. He struck out eight.
Olson posted his third scoreless start this season of at least five innings. Sunday was also his third straight start with at least seven strikeouts, as his swing-and-miss stuff has taken a noticeable jump from last season. Over his last four outings, Olson has a 1.14 ERA, 0.93 WHIP and 27:9 K:BB in 23.2 innings. He lines up for a home matchup against the Rangers in his next start.
Olson (3-2) took the loss Tuesday against the Astros after allowing three runs on four hits and three walks in 5.1 innings. He struck out seven.
En route to matching a season high with seven punchouts, Olson induced an outstanding 18 whiffs Tuesday. However, he tied a season worst in walks, and the hurler's three runs allowed were his most since he gave up four in the April 11 game against the Twins. Through his first 33 innings of the campaign, Olson owns a solid 3.55 ERA, 1.24 WHIP and 32:14 K:BB. The right-hander has also yielded just one home run in six starts in 2025, but his ability to keep the ball in the yard will be tested in his next scheduled start against the Angels, who entered Tuesday ranked fifth in MLB in homers (39) as a team.
Olson (3-1) earned the win Wednesday over the Padres, allowing two hits and a walk over 7.1 scoreless innings. He struck out seven.
It was a dominant effort from Olson, who allowed just a pair of singles to Jose Iglesias while stymying the rest of San Diego's high-powered offense. The 25-year-old Olson has now turned in consecutive scoreless outings, allowing just six hits across 12.1 innings in that span. Olson's ERA is down to 3.29 with a 1.24 WHIP and 25:11 K:BB through his first five starts (27.1 innings) this season. He'll look to keep rolling in his next outing, currently slated for next week in Houston.
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Tigers' Reese Olson: Tosses five shutout innings in win
Rotowire
Olson (2-1) earned the win against the Royals on Thursday, allowing four hits and two walks while striking out five across five scoreless innings.
Olson allowed at least two baserunners in two of the five frames he pitched, but he managed to get out of those innings without yielding a run. The 25-year-old right-hander has won four straight games at Comerica Park dating back to the 2024 regular season, and through his first four starts in 2025 he's posted a 4.50 ERA, 1.55 WHIP and 18:10 K:BB across 20 innings. Olson's next start is slated for next week at home against the Padres.
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Tigers' Reese Olson: Fades in fifth inning
Rotowire
Olson allowed four runs on six hits and three walks while striking out three over 4.1 innings, taking a no-decision Friday versus the Twins.
Olson was doing fine initially, but the Twins put together a three-run tally in the fifth inning that chased him from the game. The right-hander finished with 90 pitches (48 strikes), and he's failed to complete five innings twice in three starts so far. He's pitched to a 6.00 ERA, 1.67 WHIP and 13:8 K:BB over 15 innings. Getting the walk rate down closer to his career-average mark coming into the season (2.8 BB/9) will go a long way to getting the rest of his numbers in line. Olson's next start is projected to be at Milwaukee next week.
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