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Mariano Rivera To Start Offseason Throwing Program 

Jim McIsaac/Getty Images(NEW YORK) -- New York Yankees closer and all-time MLB saves leader Mariano Rivera is still not fully recovered from his season-ending knee injury, but he is ready for his winter throwing program.

"It is not 100 percent," Rivera said Saturday. "I would say it is 95 percent, but, by the time spring training finishes, it will be 100 percent."

The 43-yard old Rivera will begin his throwing program next week.

He tore his right ACL back in May 2012 shagging fly balls in the outfield before a game at Kauffman Stadium against the Kansas City Royals and was forced to miss the remainder of the season and playoffs.

The Yankees signed Rivera to a one-year $10 million deal and speculation is that this will be Rivera's last season in the majors.

"I don't know. I have another contract for this year," Rivera said.  "I don't know what is going to happen next year."

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