The Blue Jays have slowed the pace of Dustin McGowan's rehab program as the right-handed starter continues to battle lingering shoulder discomfort. "When he's able to even get to the mound is undetermined at this point," manager John Farrell told MLB.com. McGowan might struggle to return before the end of the 2012 season, which makes the two-year extension that Toronto gave him this spring all the more silly.