At 20, Braves’ Acuna Becomes Youngest To Hit Postseason Grand Slam

Atlanta Braves left fielder Ronald Acuna Jr. hits a grand slam Sunday against Los Angeles Dodgers starting pitcher Walker Buehler during the second inning of Game 3 of the National League Division Series in Atlanta.

John Bazemore / Associated Press

Atlanta Braves rookie Ronald Acuna Jr. has become the youngest player to hit a grand slam in the postseason.

The 20-year-old Acuna made history with his second-inning homer off Walker Buehler in the NL Division Series on Sunday night.

The previous youngest hitter with a postseason grand slam was Yankees Hall of Famer Mickey Mantle, who was 21 when he accomplished the feat against the Brooklyn Dodgers in the 1953 World Series.