Although Senna led by 9 points and there were 9 points for a win, if Prost won the last race he would have had to drop his fifth place in Canada which meant that he would be two points behind Senna even if Senna retired. Senna was the new world champion. Back to the race now and Berger was leading Mansell, Piquet, Moreno, Boutsen and Patrese. At the start of the second lap, Berger spun off into retirement after hitting debris from the Senna-Prost collision. This left Mansell who was under pressure by the Benettons leading.