According to the Fan 590 Radio station in Toronto, the Blue Jays relief pitcher has a torn labrum in his right shoulder and will be out for the entire 2008 season.
Janssen had a stellar 2007 season, posting a 2.35 ERA in 72 innings pitched.
This spring, the Jays were planning on trying Janssen out as a starting pitcher. He was scratched from a simulated game on Tuesday due to soreness in his right shoulder.
With Gustavo Chacin not ready to open the season in the starting rotation, Jesse Litsch looks to have a hold on the fifth starter's job. Tough news to swallow this week for Jays fans, after learning Chacin's carrer could be over.