Compared to the Belgian Grand Prix two weeks earlier, there were no changes in the field of participants.
After the number of starters had been limited for safety reasons on the narrow course in the previous years, the organizer surprisingly announced that this year all 26 drivers would be admitted to the race.
training
During practice, a spectacular accident occurred on the slope between the Sainte Dévote curve and the casino . As Michele Alboreto with the Zakspeed of Christian Danner collided be lifted Ferrari off, flew several feet through the air, landed back on the track and caught fire. The FISA saw the culprits in Danner and locked him up for the rest of the weekend. It was the first time in the history of Formula 1 that such a penalty was imposed. It was very controversial in the paddock because, on the one hand, not everyone believed Christian Danner to be guilty and, on the other hand, there had been similar accidents before in which no one was punished.
Mansell took the lead ahead of Senna, Piquet, Alboreto, Prost and Cheever. Up to the 30th lap nothing changed in this order at the top. But then Mansell had to give up due to a damage to the turbocharger. Senna took the lead and from then on defended it all the way to the finish. Piquet held second place just as easily. Prost followed in third after overtaking Cheever, who was previously in that position, on lap 51. As the Frenchman retired with an engine failure three laps before the end of the race, as did Cheever shortly before, Michele Alboreto took third place ahead of Gerhard Berger , Jonathan Palmer and Ivan Capelli .