DAYTONA BEACH, Fla. - Kyle Busch has received intravenous fluids following a 70-minute driving stint in the Grand-Am race at Daytona International Speedway.

Busch was co-driving with fellow NASCAR driver Scott Speed in the Saturday afternoon race in a car owned by Chip Ganassi. He drove the first stint and headed directly to the care center after turning the car over to Speed.

Busch received an IV there as a precautionary measure, then headed back to his motorhome to rest before Saturday night's 400-mile Sprint Cup Series race.

He's the defending race winner of NASCAR's Coke Zero 400. He and Speed finished 10th in the Grand-Am race.