The Detroit Tigers placed right-hander Kyle Finnegan on the 15-day injured list Friday due to a right adductor strain.

The move is retroactive to Monday.

Finnegan was injured Wednesday while warming up in the bullpen during a game against the New York Mets. He shut down the session and walked over to the clubhouse.

"We got him evaluated. It's mild," Detroit manager A.J. Hinch told reporters. "That's a good sign, but the only way to strengthen and rehab this is to have a little period of shutting down (from) games. So we'll keep his arm moving and continue doing things. But we're gonna miss him for the 15 days, and then we'll see how he responds and when he'll be available."

Finnegan was acquired from the Washington Nationals at the trade deadline and has been superb in 12 relief appearances for the Tigers. He hasn't allowed a run in 14 1/3 innings and has given up just three hits and three walks while striking out 19 and recording four saves.

Finnegan, who turned 34 on Thursday, was 1-4 with a 4.38 ERA and 20 saves in 40 appearances for the Nationals.

Finnegan feels he'll be ready for the postseason.

"I'm feeling really confident about where I'm at already," Finnegan told reporters. "We're just going to trust the plan. I expect to throw a few more games in the regular season and be ready in the postseason."

Detroit also activated outfielder Parker Meadows (quadriceps) from the 10-day injured list. Meadows, 25, is batting .200 with two homers and nine RBIs in 38 games this season.