Charles Leclerc led a Ferrari one-two in qualifying for the F1 Las Vegas Grand Prix.
But Carlos Sainz, who was second quickest, will drop 10 places because of a grid penalty.
That means Red Bull's world champion Max Verstappen, who was third fastest, will go from second ahead of Britain's George Russell for Mercedes.
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Lewis Hamilton failed to get into the final shoot-out, and will start from 10th, with fellow Brit Lando Norris 16th for McLaren.
