San Diego Padres relief pitcher Mason Miller made unfortunate MLB history in the Padres' extra-innings win against the Arizona Diamondbacks on Tuesday, as the 103.9 mph fastball he threw to Lourdes Gurriel Jr. was the fastest pitch taken deep since at least 2008, when StatCast began tracking pitch speeds.

The Padres picked up Mason Miller in a blockbuster trade that required giving up a coveted prospect, but he struggled on Tuesday.

San Diego shockingly acquired 100-mph flamethrower Mason Miller from the A’s on Thursday in a massive move ahead of the MLB trade deadline, The Post’s Jon Heyman confirmed. San Diego is also receiving former Yankee lefty JP Sears, while the A’s are receiving four players, including the No. 3 prospect in the sport in shortstop Leo De Vries.