The Cardinals open a three-game series with the first-place Pirates tonight at Busch Stadium. Adam Wainwright gets the start for St. Louis. He's 13-and-7 with a 2.66 ERA. Pittsburgh counters with Charlie Morton, who is 4-and-3 with a 3.88 ERA. The Bucs have lost three straight, but still lead the Cardinals by three games in the NL Central.