Perez, Conine begin rehab stints with Triple-A Jacksonville
Jacksonville gets the Marlins’ clearest injury checkpoint, with Griffin Conine already underway and Eury Pérez set for a 50-pitch rehab start Thursday.
Jacksonville is about to become the Marlins’ clearest injury checkpoint. Griffin Conine already opened his rehab assignment Tuesday, and Eury Pérez will follow Thursday at Triple-A Jacksonville, where the first 3-4 innings and roughly 50 pitches will tell Miami far more than the box score.
Pérez’s outing is the one that will draw the most attention. MLB.com lists the right-hander with a right gracilis strain and projects a late-July return, which makes this his first real step back toward the Marlins’ rotation after he last pitched in game action on May 27 against the Blue Jays. The plan is simple and specific: build him up carefully, let the arm show where it is, and see whether the workload climbs cleanly in a setting that the organization has already used for him before. Pérez also rehabbed in Jacksonville in May 2025, so this is familiar ground as much as it is a test.
Conine’s path is shorter, but it matters just as much to the roster picture. MLB.com lists the outfielder with a left hamstring tear and an expected return in June, and the Marlins want him to play seven innings in the outfield in his rehab opener. He has been on the 60-day injured list, so the assignment is a clear sign that Miami is trying to move him back into the mix without rushing the leg.
The contrast between the two players is what makes Jacksonville such an important stop this week. Conine is working toward a quicker return, while Pérez needs a longer ramp after a month-plus away from competition and a planned ceiling of about 50 pitches. Those are the numbers Miami will track in real time: innings, pitch count, and whether Pérez comes out of the first start ready for another step.
The Jacksonville Jumbo Shrimp, Miami’s Triple-A affiliate in the International League, have become the staging ground for both rehabs at once. One game can shift the conversation fast, and in this case the gap between a June return for Conine and a late-July target for Pérez is exactly why the Marlins sent them to the same place.
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