Heim came out of a game at Houston on Wednesday after hurting his wrist on an awkward swing in the fourth inning. Heim is batting .280 with an .816 OPS and has 14 home runs and a career-high 70 RBIs in 90 games.
He has started 80 of 103 games this season. The switch-hitter leads big league catchers in RBIs (66), hits (89), doubles (23) and runs (tied, 47). His .413 average with runners in scoring position is third-highest among qualifiers.
Sborz went 4-4 with a 4.54 ERA in 29 relief appearances before being placed on the injured list July 15 with right biceps tendinitis.