The end of the 1986 season saw the retirements of two former World Champions, champion Alan Jones and champion Keke Rosberg, as well as Patrick Tambay. The careers of Jacques Laffite and Marc Surer also ended during 1986, both through serious injury: Laffite at the British Grand Prix, and Surer in a rally crash in Germany following the Belgian Grand Prix. This was the only F1 season for both Johnny Dumfries and Allen Berg; Huub Rothengatter also dropped out of F1 at season's end. Elio de Angelis was killed in a testing accident at the Circuit Paul Ricard following the Monaco Grand Prix; he remained the last driver to die in F1 until Roland Ratzenberger at the 1994 San Marino Grand Prix.