Mariano Rivera is the ultimate Yankees closer. Since his Major League debut in 1995, Rivera has saved 400-plus games and holds the Major League record for postseason saves and most World Series saves. Rivera earned the 1999 World Series MVP, the 2003 ALCS MVP and is a consistent All-Star whole nailed down his record-tying third All-Star Game save on July 11, 2006. This Mariano Rivera autographed baseball comes complete with a guaranteed letter of authenticity and has been signed on the sweetspot of an official MLB baseball.