Beer entered Friday's game as a pinch hitter and hit a home run in the eighth inning of a 5-4 loss to Seattle.
Beer, whose contract was selected from Triple-A Reno earlier in the day, homered in first plate appearance in the majors. The lefty-hitting Beer hit for first baseman Christian Walker against right-hander Diego Castillo and went on to serve as designated hitter for the final inning. The 2018 first-round pick of the Astros posted a .909 OPS with 16 home runs and 33 doubles over 100 games for the Aces. He played primarily at first base in the minors and joins Pavin Smith as a second left-handed bat to complement Walker at the position.