New York Yankees closer Mariano Rivera is likely to be out for the rest of the season after apparently tearing the ACL in his right knee while shagging balls during batting practice before the game in Kansas City.
Manager Joe Girardi said the initial diagnosis is a torn ligament. Rivera, 42, is considered the game's greatest closer, and was considering retirement after the season.
"If that's what it is, that's about as bad as it gets,'' Girardi said. "You lose a Hall of Famer. That changes it a lot.''
Rivera is an integral member of the Yankees bullpen; David Robertson and ex-Ray Rafael Soriano are the two most likely candidates to replace him.
"If we want to play in October, we're going to have to find a way to overcome it,'' Girardi said after the loss in Kansas City.