Quijada (oblique) will begin a rehab assignment at Single-A Inland Empire on Saturday, Jeff Fletcher of The Orange County Register reports.
Quijada threw 20 pitches while facing live hitters Tuesday, and he'll return to game action with a minor-league affiliate this weekend. The southpaw hasn't pitched in a game since Opening Day, so it seems likely that he'll require multiple rehab appearances prior to being reinstated from the injured list.