Bruihl was optioned to Triple-A Oklahoma City on Sunday, Eric Stephen of SBNation.com reports.
Bruihl made the Dodgers' Opening Day roster and has a 3.38 ERA, 0.75 WHIP and 6:1 K:BB across eight innings, but he hasn't pitched in a week and will now head to Oklahoma City. Robbie Erlin, who served as the 27th man for Saturday's doubleheader, won't return to the minors and will instead remain with the big-league club.