An AP story and ESPN report that Randy has tendinitis in his left forearm and will miss his next start, but isn't expected to go on the DL. Edgar Gonzalez likely takes his spot.
Good news, it's not his back or legs. That may be about it.
Also important to note that the bullpen is a man short while he's unavailable. Not good with Bob "Pitching Change" Melvin in the dugout.