Joe Saunders (ankle) could take Robbie Ross' spot in the rotation next week. Saunders is making a rehab start with Triple-A Round Rock on Thursday, possibly putting him in line to rejoin the Rangers' rotation on May 20. The lefty could also be an option to replace Martin Perez (elbow), who could be headed to the DL. Saunders has been out since early April with a stress fracture in his left ankle.