Hamels (oblique) could be cleared to make his first minor-league rehab start next week, Stefan Stevenson of the Fort Worth Star-Telegram reports.

Hamels was able to throw two 15-pitch innings Tuesday to glowing reports, with manager Jeff Banister indicating the lefty's cutter and breaking ball both looked sharp. Banister said that Hamels won't necessarily need to throw a bullpen session before being cleared to begin a rehab assignment, but an official determination on that front should arrive by the weekend.