Blue Jays activate P Janssen from DL
To make room for Janssen, the club optioned left-hander Luis Perez to triple-A Las Vegas on Tuesday.
The 29-year-old Janssen was placed on the 15-day DL on June 17 with a right forearm strain. The right-hander has appeared in 28 games for the Blue Jays this season, going 2-0 with one save and a 2.93 earned-run average.
In five rehab appearances for double-A New Hampshire, Janssen didn't allow a run in five innings of work.
Perez has made 24 appearances in his rookie season with the Jays, posting a 3.57 ERA.