A spectacular crash during practice Friday will force five teams to use backup cars Sunday for NASCAR's Amp Energy 500 at Talladega Speedway.

NASCAR generally tests only when there is “reasonable suspicion” of drug use, but “that is not a proper professional sports drug policy,” Harvick said.

After little to no practice the past two years, NASCAR drivers are now adjusting to "hot-lap sessions," Bob Pockrass writes.