Mariano Rivera: Uncertain About Future Staff

Update: Rivera told GM Brian Cashman that he wasn't sure if he'd be returning for 2013 or not, the New York Post reports.

Recommendation: "He said he doesn't know what he is doing yet," Cashman said. "He said he was working his way through about 2013 and he would let me know soon." Rivera should come at full value in fantasy drafts if he does return, but if he doesn't, Rafael Soriano's value goes through the roof.