In his first laps at Daytona International Speedway since suffering serious injuries there in a February crash, Kyle Busch spun and triggered a multi-car accident during practice Friday.
Busch was running in a pack of cars through Turn 2 when Brad Keselowski clipped Busch's left rear bumper, turning him sideways. In the aftermath several drivers piled together. The accident came nine minutes into the first practice session for Sunday's Coke Zero 400.
All those involved -- Busch, Michael Annett, Trevor Bayne, Greg Biffle, Sam Hornish Jr., Jamie McMurray, Ryan Newman and Martin Truex Jr. -- are switching to a backup car due to heavy damage. Keselowski escaped with no damage and returned to the track for practice.
No drivers were injured.
Though unsure he actually touched Busch's car, Keselowski accepted responsibility for the crash. But Busch said Keselowski should have exercised greater patience and backed off to avoid contact.
"Looks like (Keselowski) got into my left rear," Busch said. "He got away unscathed and trashed everybody else's stuff.
"All these guys at the shop and everybody, they work way too hard building racecars in general to be wrecking them in practice. There's room to lift and sometimes people don't."
Busch broke his right leg and left foot in a Feb. 21 Xfinity Series race at Daytona. He missed 11 Sprint Cup races recuperating before returning in May. The Joe Gibbs Racing driver won last Sunday at Sonoma Raceway in his fifth start since coming back.