Miami Marlins’ rookie Kyle Stowers is one of the hottest hitters in baseball. Saturday night Stowers ended the action with a pair of career firsts. Coming up to bat with the bases loaded in the bottom of the ninth, the rookie obliterated a 103 mile-per-hour first pitch fastball.

Kyle Stowers hit a walk-off grand slam for his second homer of the day, lifting the Marlins to victory and continuing his hot streak.

Kyle Stowers turned around a 102-mph fastball for a walk-off grand slam with two outs in the ninth inning as the Miami Marlins rallied to defeat the Athletics 9-6 on Saturday afternoon.