Heim went 1-for-4 with a solo home run in Monday's 4-2 loss to the Red Sox.
Heim crushed a solo shot to center field in the sixth inning, his 10th homer of the season. It's been a fairly lackluster July for the switch hitter, as he's slashing .197/.229/.348 with three homers, 12 RBI and five runs scored across 17 contests this month. With Shea Langeliers (knee) likely out for the remainder of the season, Heim is in line to serve as the Athletics' primary catcher moving forward.