Derby-winning jockey Calvin Borel was unseated from Sonic Dancer after the start of the sixth race at Keeneland on Wednesday, Oct. 23.
"He was stable, somewhat alert and suffering the effects of a sports concussion," Keeneland Medical Director Dr. Barry Schumer said in a release. "He was complaining of pain in his leg, but he was able to move it. He was transported to the University of Kentucky Medical Center for further evaluation."