Lance Berkman (calf) ran in the outfield Sunday at Minute Maid Park for about 15 minutes. "Felt a lot better than the other day," Berkman told reporters after the short workout. "Marked improvement." He is aiming to return from the disabled list on Friday, when the Cardinals return from a six-game road trip to host the Braves at Busch Stadium. "Big Puma" was batting .348/.500/.522 through his first seven games.