Sources close to the situation have informed Boxingtalk.com that Michael Warrick injured his ribs in sparring and has been forced to withdraw from his upcoming bout with Boxingtalk's 2004 Prospect of The Year, "Mighty" Mike Arnaoutis. BT will continue to keep you updated as information regarding Warrick's replacement comes in. Remember Where You Heard It First! (4:30 PM ET)