Jack Flaherty activated by Tigers for final game of season ahead of free agency

What happened

Jack Flaherty is back in a Tigers uniform for one more afternoon. Detroit activated the right-hander from the injured list for Sunday's regular-season finale against the Pittsburgh Pirates at Comerica Park, per a team announcement reported by Charlie Wright of MLB Trade Rumors. To clear a roster spot, lefty Brant Hurter was optioned to the club's Florida Complex League affiliate.

Flaherty had been sidelined since late July with right flexor inflammation, spending that stretch on the 15-day IL. He made two rehab appearances at Triple-A Toledo before the club brought him back, reaching 39 pitches across 2 1/3 innings in his most recent outing. River Ryan gets the ball to open Sunday's game for Detroit, per the report, with Flaherty expected to cover some innings behind him.

Why it matters

The operational stakes here are modest — the Tigers enter Sunday at 76-85 (.472), eliminated from both the division race and the Wild Card race — but the personal stakes for Flaherty are real. Per the report, the appearance amounts to a ceremonial sendoff as he prepares for free agency, and perhaps more practically, a chance to demonstrate that the flexor inflammation that shelved him since late July is behind him. Heading into an offseason where, per the report, he might be looking at a prove-it deal, showing up healthy is not nothing.

The timing places Flaherty's return one day after Justin Verlander made his final career start for Detroit in a farewell ceremony — a rather different kind of sendoff. Verlander had been activated from the 60-day IL for that occasion. The two appearances bookend a weekend that Detroit will remember for reasons well beyond the standings, even if one bookend is considerably more ornate than the other.

The numbers

Flaherty's career arc with the Tigers is worth tracing, because it is genuinely unusual. He arrived ahead of the 2024 season on a one-year, $14MM deal after a disappointing year split between the Cardinals and Orioles. What followed was arguably the best stretch of his career: a sub-3.00 ERA and a career-best 32% strikeout rate across 18 starts. Detroit then shipped him to the Dodgers at the trade deadline, receiving catcher Thayron Liranzo and shortstop Trey Sweeney in return. Flaherty was solid in Los Angeles, per the report.

Then he came right back to Detroit in free agency. The club inked him to a two-year, $35MM deal heading into the 2025 campaign. Across the two seasons since that 2024 peak, the Tigers have gotten 50 starts of a mid-4.00s ERA out of him, per the report. The soon-to-be 31-year-old has not recaptured what he showed in that first Detroit stint, which is precisely why Sunday's appearance — limited as it is — carries some weight for his market value this winter.

Where the club stands

Detroit enters Sunday's finale at 76-85 (.472), sitting fourth in the AL Central, 9 games back in the division. In the Wild Card picture, the Tigers rank eighth, 7.0 games relative to the cut line. The club arrives at this final game on a two-game winning streak, for whatever comfort that provides at this particular latitude of the standings.

Sunday's matchup at Comerica Park sends River Ryan to the mound against Pittsburgh's Jared Jones. The expanded September roster — which under general league rules allows clubs to carry 28 players through the end of the regular season — gives Detroit the flexibility to carry Flaherty back without significant roster gymnastics beyond the Hurter option.

It has been a weekend of ceremony in Detroit. The ballpark was officially renamed Fifth Third Park earlier this month, and Verlander's retirement Saturday was the emotional centerpiece of the club's final homestand. Flaherty's return is a quieter footnote to that chapter, but a footnote with a contract implication attached.

What we don't know yet

The report does not specify how many innings Flaherty is expected to throw Sunday beyond the framing that he will cover some innings behind Ryan. Given that he reached only 39 pitches in his most recent rehab outing, a brief appearance seems the reasonable expectation, but the club has not detailed a pitch limit or inning target in the available reporting.

Whether Sunday's appearance meaningfully moves the needle for Flaherty's free-agent market is also an open question. The report characterizes a prove-it deal as a possibility this offseason but stops well short of projecting what that might look like or which clubs might have interest. That conversation belongs to the winter, and it will be shaped considerably by what teams make of his health after months away from a major-league mound.

What to watch

### Is Flaherty's flexor inflammation fully resolved?

Per the report, the Tigers have activated him and he is expected to pitch Sunday, but the available reporting does not characterize the injury as fully resolved — only that he completed two rehab appearances and is ready to return for this specific outing. How he comes out of Sunday's game, and what he and the club say about his health afterward, will be the first real data point for teams evaluating him this offseason.

The broader Tigers storyline to monitor beyond Sunday involves the pieces they received when they traded Flaherty to Los Angeles in 2024 — catcher Thayron Liranzo and shortstop Trey Sweeney — though a season finale against Pittsburgh is not the venue where that evaluation concludes. A week removed from the roster activity surrounding Verlander's farewell and the various late-season moves Detroit has navigated, the club closes its 2026 campaign with a right-hander trying to remind the market he is still standing. That is, in its own understated way, a perfectly baseball kind of ending.