Jason Giambi is the oldest player to hit a walk-off homer

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Last night Jason Giambi became the oldest player in baseball history to hit a walk-off home run when he took White Sox reliever Ramon Troncoso deep in the ninth inning to turn a tie game into a 3-2 win for the Indians.

The previous oldest walk-off hitter? Hank Aaron at 42 years and 157 days (it was his second-to-last career homer). Giambi was 42 years and 202 days.