Mark Prior was sent to the minors Wednesday where the Cubs hope he can regain the form that made him an 18-game winner and All-Star selection four years ago.
Prior, whose career has been slowed by an assortment of injuries, was optioned to Triple-A Iowa right after his final spring training start.
"It wasn't easy. But at the same time, this is good for his career," new Cubs manager Lou Piniella said.
Cubs Send Prior To Triple-A Iowa