Perez (elbow) threw light toss on flat ground Tuesday, Christina De Nicola of MLB.com reports.
Tuesday marks the first time Perez has done any sort of throwing since he underwent Tommy John surgery in April. He obviously has a lot more work to do before he's ready to return to a major-league mound, but it's certainly encouraging to see him making progress in the right direction. The 21-year-old righty is expected to rejoin the Marlins' rotation midway through the 2025 campaign.