Veteran NASCAR driver
The accident happened while Labonte, 49, was riding his bicycle near his home in Trinity, N.C. He was taken by ambulance to a hospital. Details of the accident were not disclosed.
Labonte had no other injuries but was being held overnight for observation.
Labonte has 21 Cup victories, the last coming in 2003, in 712 starts. The Texas native was the series champion in 2000. He has made 22 starts this season without a top-10 finish.