DETROIT -- Justin Verlander threw a 45-pitch bullpen session before Detroit's game against Milwaukee on Monday.

The right-hander said he would likely need a simulated game and at least one rehab start before taking the mound for the Tigers. Manager Brad Ausmus said Verlander will probably throw another bullpen session before participating in any sort of simulated game.

Verlander has not pitched this season because of a strained right triceps.

Reliever Bruce Rondon, who hasn't appeared for the Tigers since 2013, threw 25 pitches Monday. He missed last season because of an elbow injury, and the right-hander has been dealing with tendinitis recently.