Roy Oswalt was charged with four runs over just 4 2/3 frames but escaped with a no-decision in the Rockies' 7-6 extra innings win over the Cardinals Thursday.
Roy Oswalt dropped to 0-6 after allowing two runs in 4 2/3 innings Saturday versus the Diamondbacks.
Roy Oswalt will take Chad Bettis' spot in the Rockies' rotation.
Rockies activated RHP Roy Oswalt from the 15-day disabled list.
Roy Oswalt (hamstring) will be activated from the disabled list and appear in Sunday's game in San Diego.
Roy Oswalt (hamstring) allowed three hits and a walk over 5 2/3 scoreless innings in a rehab start with rookie league Grand Junction Rockies on Tuesday.
Roy Oswalt (hamstring) will make a rehab start with the rookie league affiliate Grand Junction Rockies on Tuesday.
Roy Oswalt (hamstring) could make a rehab appearance this weekend.
Roy Oswalt (hamstring) will throw at least one more simulated game before going out on a rehab assignment.
Roy Oswalt (hamstring) threw three innings in a simulated game Thursday.
Roy Oswalt (hamstring) threw 65 pitches in a bullpen session Monday.
Roy Oswalt (hamstring) will attempt to throw a simulated game sometime in the "near future."
Roy Oswalt experienced a setback with his hamstring Saturday while throwing a simulated game.
Roy Oswalt (hamstring) threw a successful 36-pitch bullpen session on Tuesday afternoon.