Yankees left-hander Andy Pettitte reported no problems one day after throwing 25 pitches in his first bullpen session since being sidelined by back spasms. Pettitte will have a full mound session Wednesday and might pitch in a minor league game Friday or Saturday. "Definitely didn't go backwards at all," Pettitte said Tuesday. When asked if the back discomfort had completely disappeared, Pettitte only said "I'm feeling better. A lot better."