(19-19) Philadelphia Phillies @ (15-22) Chicago Cubs http://mlb.mlb.com/images/players/mugshot/ph_136880.jpg Roy Halladay 3-3, 3.20 ERA Career vs. Cubs: 1-5, with a 3.75 ERA in six starts. 36 IP, 28 K and 4 BB. http://mlb.mlb.com/images/players/mugshot/ph_458690.jpg Chris Volstad 0-5, 6.92 ERA Career vs. Phillies: 2-5, with a 5.89 ERA in 13 starts. 70.1 IP, 49 K and 26 BB. The Cubs have always seemed to have Roy Halladay's number. Back on April 27th, the Cubs handed Halladay yet another loss as they seemed very comfortable at the plate against him. On the Cubs side of things, Chris Volstad attempts to get his first win as a Cub for the eighth time. He has a ton of experience going against this team being with the Marlins for the first four years of his career. Could this be his last start? Manager Dale Sveum has admitted he's thinking about changing the rotation. Go Cubs.