Lando

Hamilton also faces an investigation for failing to slow sufficiently for the yellow flags waved when Leclerc lost control.

Norris topped all three sessions in sprint qualifying and had a comfortable advantage over Piastri throughout.

He said: “It was a little bit tougher than I would have liked. But we did the job we needed to do, which was to be fastest today.

“Qualifying is always one of the best things here. It’s difficulty, it’s bumpy, it’s tricky, always a joy, always puts a smile on your face.

“But a long weekend, another qualifying and another couple of races to go but a good start.”

Rain is forecast for Saturday morning in Sao Paulo, when the sprint race is due to start at 14:00 GMT. Qualifying for the grand prix is at 18:00.

Norris’ result is the best possible start to the weekend and gives him the opportunity to build his championship lead – eight points are awarded to the winner of the sprint, seven for second and so on down to eighth place.

Antonelli impressed in second, his best time set on his first lap, while the surprise package of qualifying was Alonso, who set the fastest time in the second session and was just 0.253secs off pole in his midfield car in the final shootout.

His team-mate Lance Stroll was seventh fastest, ahead of Leclerc, Racing Bulls’ Iscak Hadjar and Sauber’s Nico Hulkenberg.

Norris admitted after the race in Mexico that there had been times earlier this year when he “certainly did” doubt himself.

“When the car was winning and Oscar was winning,” he said, “the last thing I could do was use the excuse that my car wasn’t good enough.

“I wasn’t getting to grips and finding a way to make it work and I’m finding a better way to make it work now, so it’s as simple as that.”

It is now Piastri facing that feeling, after two difficult weekends during which he has been a fair bit off the pace.

“For some reason, the last couple of weekends has required a very different way of driving,” said Piastri.

“What’s worked well for me in the last 19 races, I’ve needed something very different the last couple of weekends. Trying to wrap my head around why has been a bit of a struggle.”

After qualifying 0.588 seconds and seven places behind Norris in Mexico, Piastri spent Saturday night deep in the data with his engineers, trying to come up with some answers.

The race was about trying to apply them – even if he was not able to get a definitive answer as to whether they had worked, given he spent most of it stuck behind other cars on his way to a fifth place that will have felt painful, but in reality amounted to a solid recovery and exercise in damage limitation.

“Ultimately today was about trying to experiment with some of those things,” continued Piastri. “Because driving the way I’ve had to drive these last couple of weekends is not particularly natural for me.

Team boss Andrea Stella had an explanation for Piastri’s struggles.

He said that Norris excels in low-grip conditions, whereas Piastri’s driving style tends more towards high-grip levels, and he pointed out that, in only his third season, Piastri still has things to learn about adapting to different conditions.

“In the final four races, no reason to think that one may favour one driver or the other,” said Stella, pointing to Las Vegas as the most problematic potentially for the team.

“For Lando and Oscar, there’s no problem in terms of track layout coming in the next four races. If anything, we need to make sure that from a McLaren point of view, we are in condition to extract the full performance that is available in the car, like we have been able to do here in Mexico.

“The confidence in terms of the championship is increased. It’s increased because we have proven that we have a car that can win races and in some conditions can dominate races. This is the most important factor to put Lando and Oscar in condition to pursue the drivers’ championship.”

Piastri, meanwhile, cut a somewhat forlorn figure. He had a difficult weekend in the US a week ago and thought he had found the answers. But as he put it: “What’s been a bit surprising here has just been that the gap has been the same pretty much every session.

“I feel like I’ve done some decent laps through the weekend, but everything seems to be about 0.4-0.5secs off.”

Team principal Andrea Stella said Piastri was losing a little bit everywhere, and Piastri said: “I feel like I did a reasonable job and the car felt reasonable as well. So, yeah, the lack of lap time is a bit of a mystery.”

Piastri has been off Norris’ pace whether on short runs or long, low fuel or high, so it is more in hope that he said of the race: “If I can unlock the pace in the car, we can have some fun. We’ve just got to try to unlock it.”

This is now Piastri’s fifth difficult weekend in a row, his form mysteriously evaporating since he won in the Netherlands at the end of August.

He did not talk directly about what this means for the championship, but there was no hiding the meaning behind one of his comments: “There’s a lot of things I could worry about, but ultimately being that far off when you feel like you’ve done a reasonable job is a difficult place to be. And so that’s my biggest concern at the moment.”

Stella said that the conditions in Mexico, like those in Austin, are ones in which Norris thrives and Piastri is less comfortable – low grip, hot tyres.

And he said that “every evidence, every piece of data, every indirect measurement of information we have, tells us that there is no problem with the car”.

He added that it was “good” for McLaren to be able “to confirm that we can have the fastest car”, adding that their “focus is to stop the momentum of Verstappen”.

Norris started alongside Verstappen on the front row, hoping McLaren’s usually strong race performance would allow him to challenge the Red Bull driver, who had won two of the past three races and beaten the McLarens in all of them.

But Norris’ hopes of the win evaporated quickly as Leclerc used the extra grip of the soft tyres – he was the only driver in the top 10 to pick them for the start, with everyone else on mediums – to catapult into second place at the first corner.

As Verstappen built his lead, through an early virtual safety car period caused by a collision between Williams’ Carlos Sainz and Mercedes’ Kimi Antonelli, Norris tried in vain to pass Leclerc, with Hamilton in close attendance.

Several times Norris challenged Leclerc on the outside at Turn 12, at the end of the long back straight, but he was never close enough to really try for a pass.

As Verstappen built his lead, Leclerc held on until just before he stopped for fresh tyres on lap 22, fitting the medium compound.

Verstappen stopped a couple of laps later, never losing the lead and enjoying an untroubled win, his third in four races and fifth of the season, matching Norris’ tally.

Norris stayed out for a further 10 laps, dropping behind the Ferrari again when he stopped to fit the soft tyres.

The Briton emerged 2.4 seconds behind Leclerc and within four laps was on the Ferrari’s tail.

But again he could not pass and soon he was on the radio saying his tyres we’re gone.

Norris was advised by his race engineer Will Joseph to back off for a few laps to cool his tyres and try again.

Norris did so, and closed in with five laps to go. He challenged into Turn One, briefly getting past, only for Leclerc to cut back and reclaim the place.

But half a lap later, Norris went for the position again into Turn 12, dummying Leclerc and this time making the move stick.

By this stage, Hamilton had dropped back and took a lonely fourth place.

Red Bull’s Max Verstappen beat McLaren’s Lando Norris to pole position at the United States Grand Prix with championship leader Oscar Piastri down in sixth.

After the McLaren drivers crashed out of the sprint earlier on Saturday, neither was able to challenge Verstappen even though the world champion failed to complete a final run in qualifying.

Verstappen was sent out too late to get around in time to start a last lap before the chequered flag but still beat Norris by 0.291 seconds.

It was an imperious performance that underlined why McLaren are concerned about his threat in the drivers’ championship.

Norris saved his best for last in a difficult session to pip Ferrari’s Charles Leclerc to second on the grid by just 0.006secs.

But Piastri, who has looked out of sorts all weekend, was not quick and he ended up 0.574secs off the pace, and behind Mercedes’ George Russell and the second Ferrari of Lewis Hamilton.

The crash was a gift for Verstappen, who McLaren have always insisted remained a threat in the championship despite his significant deficit, especially as Red Bull have returned to form in recent races.

The crash brought out the safety car for five laps and after the restart Verstappen was tracked by Russell, who made a bold move into Turn 12 on lap seven, a late dive that ended up with both going off the track.

Verstappen retained the position and soon began to edge away and took control of the race.

Sainz was no threat to Russell, but he had to watch his mirrors for Hamilton.

The seven-time champion passed team-mate Charles Leclerc on lap eight down the back straight after the Monegasque lost control of his car through the high-speed Esses earlier in the lap.

Leclerc had a snap through the Esses, cut one of the corners, and that allowed Hamilton to close up. He then passed down the straight as Leclerc edged him right to the edge of the track on the inside.

Leclerc tried to fight back through the series of slower corners through the stadium section but Hamilton held on.

Leclerc took fifth place, with Williams’ Alex Albon sixth and Red Bull’s Yuki Tsunoda seventh.

Mercedes’ Kimi Antonelli took the final point after a 10-second penalty for Haas driver Oliver Bearman, who was adjudged to have gained an advantage by leaving the track after the Italian tried a passing move into Turn 12 late in the race.

Bearman could not believe the penalty when told about it by his team during the race, obviously feeling Antonelli had forced him off track with his late move.

The race ended under another safety car after Aston Martin’s Lance Stroll T-boned Esteban Ocon’s Haas into the first corner, leaving his team with a massive repair job on both cars in the gap before grand prix qualifying at 22:00 BST.

Piastri had looked to be struggling compared with Norris since the start of practice and was a good chunk off the Briton in all three qualifying sessions.

Norris said: “Disappointed not to be on pole but not a surprise for us to be just a bit slower than the Red Bull lately.

“A little couple of bits here and there I could have improved on and caught a few bumps a little bit wrong, that’s the difficulty of this track. Otherwise, all happy.”

Piastri said: “A pretty scruffy lap. Just didn’t really get it together. In some ways, I feel a bit fortunate to be third. The pace in the car is good. It’s nothing major, just been a bit of a messy lap and hopefully I can tidy it up tomorrow.”

The sprint offers eight points for the winner down to one for eighth place.

The stand-out performance in qualifying came from Hulkenberg, the first time he has qualified in the top 10 all year, and the best Sauber performance of the season.

Their previous top grid position was seventh for team-mate Gabriel Bortoleto in Hungary at the start of August.

“Satisfied, happy, as you might imagine,” the German said. “P1 looked too good to be true. We weren’t sure if it was the real deal but we were able to continue that trend. Hopefully we can hang on to it this weekend.

“The pace was just there. The car seemed to be fast and in a good window, hit the sweet spot, I think that’s all.”

McLaren’s Lando Norris set the pace in practice at the United States Grand Prix, split from team-mate and title rival Oscar Piastri by Sauber’s Nico Hulkenberg.

Norris, trailing the Australian by 22 points with six races to go, headed Piastri by 0.279 seconds at the start of a sprint weekend at the Circuit of the Americas.

Aston Martin’s Fernando Alonso was fourth fastest, ahead of Red Bull’s Max Verstappen and Williams’ Alex Albon.

This was the only session before sprint qualifying at 22:30 BST.

Mercedes’ George Russell was seventh fastest, the first driver to set his fastest time on the medium tyres, ahead of Ferrari’s Lewis Hamilton, Racing Bulls’ Isack Hadjar and Haas’ Oliver Bearman.

Red Bull’s Max Verstappen, who is 63 points behind Piastri in the championship but has won two of the past three races and finished second in the other, was asked in a news conference on Thursday in Austin whether he believed McLaren were favouring Norris.

He replied: “Absolutely.”

He laughed, and then said: “Yep.”

Leaving the news conference, he said off-microphone: “Well, there’s a headline.”

BBC Sport sought clarification from Verstappen as to whether he had been joking, and he said through a PR person that he had been.

In answer to the same favouritism question, Verstappen added: “I honestly don’t know. I don’t care also. It has nothing to do with me. They do whatever they think is right and they are doing a very good job of it being so quick.

“For me, the most important thing is we maximise our potential and as long as we do that, it is in our control.”

Piastri said: “I’m very happy that there’s no favouritism or bias.”