Ferrari's Charles Leclerc took pole position following a farcical end to qualifying at the Italian Grand Prix.
All drivers except Leclerc and Carlos Sainz of McLaren failed to get around to start a final lap after waiting to catch a slipstream at high-speed Monza.
The unlikely climax left Leclerc on pole with his first lap, beating Lewis Hamilton by 0.039 seconds.
The other Mercedes of Valtteri Bottas was third, ahead of Ferrari's Sebastian Vettel and Renault's Daniel Ricciardo.