I don't think it really matters to a pitcher if they go: start, off day, off day, side session, off day, start or if they go: start, off day, side session, off day, off day, start It's still essentially the same thing. The fact that he got taken out a little early of Friday's night game probably helped as well. Now if the game had continued, my gut feeling would be that Volquez would have thrown 20-25 more pitches. That would have been a problem. The amount he threw though was a decent side session. I doubt there's anyway to prove it, but those are high-stress pitches he was throwing, making it tougher than just an ordinary side session. As I mentioned though, it's hard to blame Baker for the 2 innings. It's the likelihood that he would've went another 3 that's the problem.