Chris Carpenter will throw from a mound Sunday for the first time since undergoing May 9 surgery to remove bone chips from his right elbow. Its significance is to be determined. While voicing satisfaction with how his elbow has responded, Carpenter said it would be improper to consider him ahead of schedule until he takes the next step in his recovery. "I think that?s why we?re going to throw off the mound Sunday," he said. "I don?t know. They?re going to evaluate me, see if there are problems or swelling or anything like that. Then we?ll talk about when my next mound (session) is going to be, how much we?re going to push it and where we?re going to go from there."