Joba Chamberlain, already working his way back from Tommy John surgery, has reportedly injured his ankle playing with his son and already undergone surgery.
Chamberlain was apparently playing with his young son, Karter, on a trampoline when he dislocated his right ankle. He underwent surgery Thursday night on what was termed an "open dislocation."
Yankees general manager Brian Cashman called it a "significant" injury, but there is no timetable for recovery as of yet.
Chamberlain missed much of last season after undergoing Tommy John surgery. He was placed on the disabled list June 8 and had the surgery soon after. He was pitching well at the time, with a 2.83 ERA in 28 2/3 innings.
He was working his way back for the surgery and had already begun throwing this spring. The team wasn't sure when he would return, but Chamberlain said he was hopeful to do return by the All-Star break.
Chamberlain is arbitration eligible after this season, his fifth full season, so a season-ending surgery could mean the end of his Yankee career.