Klassen is slated to start Wednesday's game against the Rangers at Angel Stadium.
Johnson will start Tuesday's game against the Rangers at Angel Stadium.
Rivero (hand) was returned from his rehab assignment Monday after suffering a setback, Rhett Bollinger of MLB.com reports.
Bachman (forearm) played catch out to 60 feet Monday, Rhett Bollinger of MLB.com reports.
The Angels placed Anderson on the 15-day injured list Monday due to right shoulder inflammation.
Rivero (hand) was returned from his rehab assignment Monday.
The Angels selected Peralta's contract from Triple-A Salt Lake on Monday.
Siri went 2-for-4 with a solo home run and a double in Sunday's loss to Miami.
Yoho (2-1) was tagged with the loss to the White Sox on Sunday, when he allowed four runs on two hits and four walks over a third of an inning.
Ramirez went 2-for-3 with a walk, a stolen base and an RBI in Sunday's 5-3 loss to the White Sox.
