NASCAR Sprint Cup Series driver A.J. Allmendinger was temporarily suspended after failing a random drug test, NASCAR said Saturday.
The announcement came shortly before the start of Saturday night's Coke Zero 400 at Daytona International Speedway. Allmendinger's team, Penske Racing, replaced Allmendinger with Sam Hornish Jr. in their No. 22 Dodge for the race.
Allmendinger, a 30-year-old native of Los Gatos, Calif., has 72 hours to request the test of another sample, said NASCAR, which did not elaborate on what the initial test results showed.
Steve O'Donnell, NASCAR's senior vice president of racing operations, declined to take questions after announcing the suspension to reporters at Daytona.