Rivera throws perfect 4th in spring train

Rivera throws perfect 4th in spring training debut
AP - Sports
New York Yankees relief pitcher Mariano Rivera, pitching for the first time with his number matching his age of 42 years, winds up against the Philadelphia Phillies in the fourth inning of their spring training baseball game at Steinbrenner Field in Tampa, Fla., Sunday, March 11, 2012. Rivera, who went one inning, was the winning pitcher in the game. (AP Photo/Kathy Willens)
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