Lots of people calling this for the breakaway but I'm kind of expecting BikeExchange to chase for Matthews, just like all those Vuelta stages last year. Especially because they need the points.
Matthews is not a good breakaway rider, though. He also just said that he expects the new finish to be more selective, and better for him than last time (which wouldn't matter much if he is in the break, where he is quickest anyway). So I'd think they plan to work all dayNah - Matthews will be in the break, especially seeing they could have won today's stage if they put a rider in the break.