New York Yankees v Kansas City Royals

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New York Yankees relief pitcher Mariano Rivera gives a thumbs up to... News PhotoAmerican League,Baseball - Sport,Baseball Bullpen,Giving,Kansas City - Missouri,Kansas City Royals,Kauffman Stadium,Mariano Rivera,New York Yankees,Ninth Inning,Pitcher,Relief Pitcher,Sport,Stadium,Thumb,USA,VerticalPhotographer Collection: Tribune News Service 2013 MCTNew York Yankees relief pitcher Mariano Rivera (42) gives a thumbs up to the bullpen after he closed out the ninth inning against the Kansas City Royals at Kauffman Stadium in Kansas City, Missouri, Sunday, May 12, 2013. Yankees won, 4-2. (John Sleezer/Kansas City Star/MCT via Getty Images)