Jets wide receiver Quincy Enunwa left Sunday's game against the Colts with an apparent right ankle injury and did not return.
Enunwa got hurt in the second quarter on a play where he fumbled the ball after making a catch. It led to a Colts field goal, giving them a 13-10 lead.
Coach Todd Bowles would not speculate about the injury after the game, which the Jets won 42-34. Enunwa was undergo an MRI on the ankle Monday.
He entered Sunday as the Jets leading receiver with 21 catches for 278 yards. Enunwa missed all of last season with a neck injury.