I might be alone on this one, but when I have a situation like this sometimes I see the over as the safer bet. In my mind, a lot has to go right for the under or side to hit. The starting pitcher has to do well, the bullpen has to do well, the hitters on your side have to do well. On the over, all you need is one piece of the machinery to break down. I don't trust either of these teams to much, so I feel better with the over, especially at 9.5