teammate Piercarlo Ghinzani. Qualifying classification Race report Following problems at the start of the formation lap, pole position man Teo Fabi was forced to start from the back of the grid and Alain Prost, alongside him on the front row, had to start from the pit lane in the spare car. At the green light, Gerhard Berger took the lead, but on lap eight lost positions to first Mansell, Piquet, and an on-form Alboreto in the Ferrari. Ayrton Senna was out with a broken gearbox at the start. Alboreto looked to be in challenging the Williams duo for the lead having overtaken Rosberg, Arnoux and Berger before spinning at the exit of the first chicane. Like the British Grand Prix, the race became a close fight between the two Williams drivers, but this time Piquet hunted down his teammate British driver Nigel Mansell to take the victory. Piquet defeated Mansell in a straight fight, leading the Briton home by 9.828 seconds. The Brazilian managed to pass Mansell at the Curva Grande to go on and claim his fourth win of the season. Behind, Fabi and Prost had charged from the rear and by lap 12 were running 8th and 9th. Prost was disqualified for changing cars after the start of the formation lap, which was illegal, but his engine blew up a lap after he was flagged anyway. Johansson charged early in the race, passing Rosberg and Arnoux on lap five to go on to finish third. Race classification Championship standings after the race Drivers' Championship standings Constructors' Championship standings References Italian Grand Prix Grand Prix Italian Grand Prix September 1986 sports events in Europe