I heard Phil, Paul, and Bob talking about it early in the Tour, and they mentioned having riders sprinting for time bonuses on the Champs-Elysees. I think if the split were 20 sec. or less, it might happen, but, for all practical purposes, Pereiro can't make up that time tomorrow. If he tries to break, the peloton will get really pissed and catch him before he gets enough time bonuses, if any, to close the gap.