Bill Mazeroski celebrates after hitting a walk-off home run in Game 7 of the 1960 World Series between the Pirates and Yankees. It was the first walk-off home run to win a World Series in baseball history. (AP)

Bill Mazeroski celebrates after hitting a walk-off home run in Game 7 of the 1960 World Series between the Pirates and Yankees. It was the first walk-off home run to win a World Series in baseball history. (AP)