It took him a month last time to recover from throwing too many pitches in one game. I doubt if three days rest after his 50+ pitch 1.2 IP effort last time is enough for him to recover. Dick Pole said after the last game that before it started, he could see that Arroyo had nothing, which is what happens when you're arm is overused. You think you're pitching well, but there's nothing there.
I'm placing the over/under at 2.2 innings. I don't think he makes it out of the 3rd on Sunday, and gets killed for at least 6 runs, earned or not.