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

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).

Lourdes Gurriel Jr. took his time.The Arizona Diamondbacks designated hitter didn't swing at the first two pitches he saw from San Diego Padres reliever Mason Miller — a fastball that registered at 102 miles per hour for a ball and an 89-mph slider — with two outs in the bottom of the eighth inning Tuesday night in Phoenix.