Because of Cain's last outing. He gave up 5 runs. The last few starts he has started slow, particularly the first inning not having command of his pitches except the fastball and has given up the long ball. If he gets command early, he gets tougher as the game goes on. That will be a key tonight. On the plus side, the Giant hitters have been on fire the last few games and putting up crooked numbers. If they can get to Wainwright, which they have earlier this year and get a lead, they could pull out the win. Reasonable take but it won't be easy tonight IMHO.