Mariano Rivera tore his ACL earlier today shagging flyballs in batting practice, and he will likely miss the rest of the 2012 season. Rivera, 42, has hinted at retiring after this season, meaning his Hall of Fame career might be over.
In any event, for the 2012 season, it appears that David Robertson will likely take over in the closer role.
Twitter / @JeffPassan: Mariano Rivera with torn A ...
"Mariano Rivera with torn ACL."
Rapid Reaction: Mo's injury - Yankees Blog - ESPN New York
"WHAT IT MEANS: Mariano Rivera appears to have a torn ACL and could very well be out for the season, according to manager Joe Girardi. Rivera has hinted that this will be his final season. Now, this possibly could mean the end of his Hall of Fame career."
Twitter / @JonHeymanCBS: #Mariano said not to give ...
"#Mariano said not to give up all hope on return this season. But to come back from torn acl in 4-5 months would be true miracle"