Mariano Rivera, doing what Mariano Rivera does, last spring against the Orioles. (Al Bello / Getty Images)

On Saturday, Mariano Rivera is expected to say the words that no one really wants to hear.

Rivera, baseball’s all-time saves leader with 608, is expected to announce in a 10 a.m. press conference that he will retire after the 2013 season, according to New York Post and ESPN reports. Rivera declined to say what he would discuss Saturday, confirming only that there would be a press conference. Rivera, 43, revealed last month that he’d made up his mind about whether this would be his final season but was not ready to reveal that decision.

“Yes, I have [decided],” Rivera said Feb. 13. “I won’t give it up until I’m ready for that. Yes, I have. Yes, I have. But again, I will tell you guys when I think it’s the right moment.”

Rivera, who missed almost all of the 2012 season after tearing his right anterior cruciate ligament shagging fly balls, is expected to make his spring training debut Saturday. Until his injury, it was expected that 2012 would be his last season, but instead he vowed to come back and go out on his own terms.

As dominant as he was in the regular season, Rivera is an October legend as well as being one of the Yankees’ core four (Derek Jeter, Andy Pettitte and Jorge Posada). In 96 postseason games over 141 innings, he has 42 saves and a 0.70 ERA while the Yankees won five World Series.

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