Image source, Reuters
Lando Norris trails McLaren team-mate Oscar Piastri by 22 points in the drivers' championship
By
F1 Correspondent in Austin
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.
McLaren have said Norris will face "consequences" for his collision with Piastri while passing him at Turn Three on the first lap at the Singapore Grand Prix.
But they have not said what those repercussions will be, although it has emerged they will be of a sporting nature, and relatively minor, befitting the scale of the incident.
McLaren Racing chief executive officer Zak Brown told Sky Sports it would be "very marginal, probably won't be noticed".
There were no major incidents in the practice session, although Williams' Carlos Sainz and Ferrari's Charles Leclerc both ran into gearbox problems.
Five things to watch at US Grand Prix
United States Grand Prix
17-19 October, with race from 20:00 BST on Sunday
Live commentary on BBC Radio 5 Live, Sports Extra and Sports Extra 2; live text updates on BBC Sport website and app