San Diego Padres reliever Mason Miller was bringing the heat on Tuesday night. Arizona Diamondbacks outfielder Lourdes Gurriel Jr. returned the favor. Gurriel crushed a 103.9 mph fastball from Miller into the left-field seats for a two-run homer in the eighth inning,

Lourdes Gurriel Jr.'s bat was faster than a speeding bullet, or at least faster than anything Padres right-hander Mason Miller could throw at him. The Diamondbacks outfielder turned on 103.9 mph offer

Lourdes Gurriel Jr. etched his name in MLB history by hitting a 103.9 mph fastball from Mason Miller for a game-tying home run, the fastest pitch ever hit for a homer since 2008. The Diamondbacks outfielder also homered earlier in the game,