NEW YORK -- New York Yankees captain Derek Jeter has been diagnosed with a small crack in his surgically repaired left ankle, a setback that will keep him sidelined until after the All-Star break.

Yankees general manager Brian Cashman made the announcement before Thursday night's game against the Arizona Diamondbacks. Jeter originally dislocated the ankle in Game 1 of the AL Championship Series in October.

"We have to back off and let that heal," Cashman said of the small crack in the bone. "This is obviously a setback. We are looking at, in terms of speculating on when Derek might be back with us, you are looking at some point after the All-Star break."

Cashman said Jeter will not need another surgery. Jeter's surgeon, Dr. Robert Anderson, who diagnosed the shortstop in Charlotte, N.C., on Thursday, told Cashman that "95 percent" of the people who have this injury come back from it fine.