The injury appeared to occur when Coke was rushing to field a bunt off the bat of Eric Hosmer. Coke exited the game with the bases loaded, having walked a batter and allowed a single prior to the bunt hit.
Coke, one of three left-handers in the Tigers' bullpen, has a 3.79 ERA in 54 2/3 innings. He's gone eight outings without allowing a run.
Matt Slovin is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.