The 31-year-old Mayfield was transported by ambulance to
Methodist Hospital for further examination, but Indianapolis Motor
Speedway officials said he was awake and alert.
Mayfield was following teammate Rusty Wallace as the two Fords
approached the entrance to turn three on the 21/2-mile oval.
Wallace's car twitched as it entered turn three and continued, but
Mayfield's car went into a spin and the driver's side of the No. 12
Taurus slammed hard into the concrete wall.
It took track safety workers nearly 10 minutes to remove
Mayfield from the battered car.
Mayfield, from Owensboro, Ky., has won two races this season and
is 15th in the series points.