Though Acosta downplayed the injury after receiving an X-ray at Comerica Park, he left the stadium sporting a heavy wrap on the wrist. His manager, Terry Collins, said he was unsure of Acosta's status heading into the weekend.
"They'll tell me tomorrow what's going on," Acosta said following Thursday's game.
Pitching in the eighth inning, Acosta fell on his right wrist while fielding Ramon Santiago's groundout and attempting to throw in the same motion. He bent his hand backward, at a right angle, resulting in the hyperextension.
Acosta had been struggling in a mop-up role prior to the injury, posting a 9.35 ERA in nine appearances since rejoining the Mets. If Acosta's wrist is not healed by this weekend, the team could place him on the disabled list and recall another reliever from Triple-A Buffalo.