Stephan allowed three runs on four hits in one inning during Saturday's 8-2 loss to Tampa Bay.
Stephan has received just four appearances in July, allowing four runs across six innings. He hasn't had more than two consecutive scoreless outings since May, which has kept the right-hander in a low-leverage role. The 25-year-old rookie has a 4.89 ERA, 1.57 WHIP and 42:18 K:BB with 10 home runs allowed through 35 innings.