Kevin Slowey had to leave Wednesday's start against the Phillies after the fifth inning with an apparent injury.
Hiroki Kuroda left Wednesday's start against the Orioles in the third inning with an apparent injury.
Jake Westbrook had to stop his bullpen session Wednesday after 20 pitches due to pain in his right elbow.
John Lannan (quad) is scheduled to face hitters next Wednesday.
Roy Halladay (shoulder) could rejoin the Phillies' rotation in late August if everything progresses on schedule.
Adam Dunn is still dealing with back pain but plans to continue playing through it.
A one-man offense, Jose Bautista went 4-for-4 with two homers and a game-winning hit in the bottom of the 10th as the Blue Jays edged the Rays 4-3 on Wednesday.
Jeremy Hellickson pitched a season-high eighth innings and allowed two runs Wednesday against the Blue Jays.