After a spectacular accident between the two world championship rivals Max Verstappen and Lewis Hamilton, Daniel Ricciardo won the Formula 1 classic in Monza.
The 32-year-old Australian relegated his team-mate Lando Norris to second place in the Italian Grand Prix on Sunday.
McLaren with the German team boss Andreas Seidl celebrated a completely surprising double success and the first Grand Prix victory of the traditional racing team since Jenson Button's triumph in November 2012 in Brazil.
Third place on Sunday went to Valtteri Bottas, who started from the very rear in the Mercedes, who still benefited from a penalty against the Mexican Red Bull driver Sergio Perez.
Sebastian Vettel did not get past twelfth place in the Aston Martin, Mick Schumacher took 15th place in the Haas.
The decisive scene of the race occurred on lap 26, when Hamilton in the Mercedes and Verstappen in the Red Bull collided and got stuck in the gravel with their cars wedged together.
In the standings, Verstappen continues ahead of defending champion and seven-time champion Hamilton.
Five points separate the two in their thrilling duel for the World Cup crown before the Russian Grand Prix in Sochi in two weeks.