Guzman is not in the lineup for Thursday's contest in Baltimore.
Johnson will start Thursday's game against the Orioles at Camden Yards, Rhett Bollinger of MLB.com reports.
D'Arnaud is absent from the lineup for Thursday's game in Baltimore.
O'Neill went 1-for-3 with a two-run home run in Wednesday's 5-2 win over the Angels.
Mayo went 2-for-4 with a solo home run in a 5-2 win against the Angels on Wednesday.
Rogers (7-7) earned the win against the Angels on Wednesday, allowing two runs on three hits and no walks while striking out nine across six innings.
Kittredge earned the save in Wednesday's 5-2 win over the Angels, when he pitched a flawless ninth with no strikeouts.
Detmers (3-8) took the loss against the Orioles on Wednesday, allowing three runs on four hits and a walk with five strikeouts in four innings.
The Angels promoted Bremner from High-A Tri-City to Double-A Rocket City on Tuesday.
Guzman is out of the lineup for Wednesday's game against the Orioles, Rhett Bollinger of MLB.com reports.
