Chicago Cubs manager Dusty Baker said injured pitcher Kerry Wood, who will skip his next scheduled start on Monday because of a shoulder injury, might have to go back on the 15-day disabled list. "Yeah, it's a possibility," Baker said Sunday night before the Cubs played the Cardinals. "They said he was better today than yesterday but still not quite ready." Wood, 3-3 with a 4.67 ERA in 10 starts, had a cortisone shot on Thursday after lasting only three innings and giving up three homers in a 9-3 loss at Cincinnati on Wednesday. The shoulder has bothered Wood all season, already forcing him to the disabled list once.