San Diego Padres reliever Mason Miller was bringing the heat on Tuesday night. Arizona Diamondbacks outfielder Lourdes Gurriel Jr. returned the favor. Gurriel cru

The Diamondbacks' Lourdes Gurriel Jr. hit a home run off a 103.9-mph pitch by the Padres' Mason Miller. It's the fastest pitch to be hit for a home run since MLB started tracking the stat.

Lourdes Gurriel Jr. of the Diamondbacks sent one into the seats for a two-run homer off a 103.9 mph pitch from the newest Padres reliever, Mason Miller, in the eighth inning of Arizona’s 10-5 loss. His home run was a record-breaker as it was the fastest pitch ever hit for a home run in the Statcast era (since 2015).