Watch: Didier Pironi (Ferrari) and Mario Andretti (Alfa Romeo) side-by-side battle | 1981 United States GP West. An extended battle between Ferrari's Didier Pironi and Mario Andretti (Alfa Romeo) .

Enjoy an extended battle between Scuderia Ferrari driver Didier Pironi and Mario Andretti (Alfa Romeo) at Long Beach, California in the 1981 United States GP West:

— see video above —