Malcolm Stewart sustained a broken femur in Saturday night’s crash in Round 2 of the Supercross season in Glendale, Ariz. according to reports at RacerXOnline.com.
Stewart was running fourth at the time of his accident when he lost control in the whoops and went down hard at the end of the section.
He was attended to by the Mobile Medical Crew and waved to the crowd as he was carted off the track.
He is scheduled to undergo surgery on Sunday.