 Going into the tight Rettifilo chicane at the end of the start-finish straight, Schlesser went wide, expecting the Brazilian driver to pass on the inside, and in the process locked his brakes.Wishing to keep his car on the track, Schlesser turned inside, and his left front wheel hit Senna's right rear.With the rear suspension broken, the McLaren spun and beached itself on a kerb, and the Ferraris secured a one-two finish on home soil, less than a month after Enzo Ferrari's death.