Rider Tim Thornton suffered a broken collarbone and facial fractures when he was dislodged after his mount clipped heels with another horse near the quarter mile pole in the fourth race at Hawthorne Race Course Oct. 21.
The extent of Thornton's facial injuries has not been determined, track officials reported. He was taken to Loyola Medical Center after the accident in a conscious state but complaining of shoulder pain.
His mount, Madmanskillz, was racing in fourth between horses on the turn in the 6 1/2-furlong race for $5,000 claiming horses when he apparently was clipped by another runner, Grey Stream.
Grey Stream, the original second-place finisher with Julio Felix aboard, was disqualified for interference and placed last.