Accomplished motorcycle racer Johnny Cecotto made his debut in Formula One with Theodore Racing at the 1983 Brazilian Grand Prix. He scored his only points in the following race, however the luck didn't last as the team was forced to pull out of the sport before the penultimate race of the 1983 season. Cecotto landed a drive alongside debutant Ayrton Senna at Toleman for 1984, but was a classified finisher in only one of the ten races he participated in that season. His final appearance was the 1984 British Grand Prix.