Joba Chamberlain, rehabbing this spring to return to the Yankees bullpen from Tommy John surgery on his right elbow, has suffered an ankle injury that will likely cause him to miss the 2012 season.

The injury, an open dislocation of Chamberlain's right ankle, deals a significant setback to the relief pitcher, whose eagerness this spring to rejoin the Yankees has been well documented, and the Yankees, who were counting on him to add depth to their bullpen.

Chamblerlain had surgery Thursday night to set the joint, which was dislocated, Yankees general manger Brian Cashman said, while the pitcher was playing with his son jumping on a trampoline.

Chamblerlain was visited in the hospital this morning by Yankees manager Joe Girardi. Chamberlain will be hospitalized as he recovers for several days, Cashman said.