Formula One champion Max Verstappen won the US Grand Prix sprint for the third year in a row on Saturday after McLaren's title contenders Oscar Piastri and Lando Norris collided at the start and retired.

The Red Bull driver, starting from pole position at Austin's Circuit of the Americas with Norris alongside, finished 0.395 seconds clear of Mercedes' George Russell with Carlos Sainz third for Williams and Lewis Hamilton fourth for Ferrari.

The eight points for victory left four times world champion Verstappen 55 adrift of championship leader Piastri with the main grand prix to come on Sunday and five further rounds after that including two more sprints.

"The start was good, then of course there was the safety car because of the turn one incident," said Verstappen after just the sort of perfect outcome he needs to have a chance of a fifth successive title.

"Then it took a few laps after the safety car to have a decent pace.

"I do think we need to be a bit better in race trim to be able to fight the McLarens because we haven't seen anything of them."

Norris and Piastri's race was over in a matter of metres, the Australian's car hit by Sauber's Nico Hulkenberg at the first corner and pitched onto his teammate's.

The safety car was deployed, with debris strewn across the track.

"Someone just wiped me out, I'm out," said Norris, a blameless victim who tried to continue but stopped on track.

Piastri, 22 points clear of his teammate at the top of the standings, made it back to the pit lane but retired with a broken suspension. (Reuters)