I haven't really been paying much attention to the D-Backs this year, but Dan Haren is really pitching great. His ERA+ is 203, and he has a WHIP of .815 on the season. The Carpenter Johnson match up should be interesting, but I'd give the edge to the Cards in this one. With a win tonight I think the Cubs can reasonably expect to gain ground on two of the three teams ahead of us based soley on the pitching matchups.