Rangers starters Rich Harden and Derek Holland have both suffered setbacks in their return to the rotation.
Harden, who is on the disabled list with a strained left gluteal muscle, won't throw until next week after having an anti-inflammatory injection in his lower back Thursday.
Holland, who appeared closer to returning from the DL with left rotator-cuff inflammation, hurt his right knee Friday in Arizona while working on fielding drills.
Rangers' Harden, Holland Suffer Setbacks