After the fatal crash of his teammate François Cevert in practice for the 1973 United States Grand Prix at Watkins Glen, Stewart retired one race earlier than intended and missed what would have been his 100th Grand Prix.
Despois do accidente mortal do seu compañeiro de equipo François Cevert na práctica para o Gran Premio dos Estados Unidos de 1973 en Watkins Glen, Stewart retirouse unha carreira antes do previsto e perdeuse o que sería o seu Gran Premio nº 100.