George Russell withstood two attacks from Mercedes team-mate Kimi Antonelli to win the Canadian Grand Prix sprint race from pole on Saturday.
Russell prevailed in Montreal ahead of world champion Lando Norris of McLaren and Antonelli for his second sprint win of the Formula One season.
Antonelli was forced off the track in both of his attacks against Russell in lap six and again in the penultimate lap when he tried to reclaim second from Norris.
He was fuming via team radio and had to be told twice by team principal Toto Wolff to calm down, and the two drivers briefly shook hands briefly post-race.
"It was a tough battle to be fair. We were all there in terms of pace. It was not easy. I tried to make my move but I need to review on that because I was well alongside and got pushed off. It is what it is," Antonelli said of the first incident.
"Then I made a mistake into Turn 8 because I took a big bump, locked up then I compromised my race from there but it was a good battle."
Russell said: "It was a good battle with Kimi. I'm glad we are both standing here after the race. It was a cool race, very difficult to get a gap around here."
Wolff later told Sky TV of a "learning experience," saying: "We have to rein it in all together at an earlier stage and not complain in public."
Antonelli retained the championship lead, dropping only two points on Russell and ahead by 18 points.
The Canadian Grand Prix proper is on Sunday, with qualifying later Saturday. Antonelli has won the last three grands prix after Russell topped the first one in Australia.
Russell won the start from pole and Antonelli kept Norris at bay in a good start as well while Lewis Hamilton moved past the second McLaren of Oscar Piastri on the outside into fourth.
The Mercedes duo soon opened a gap and Antonelli tried his luck at the start of lap six, managed to get next to Russell who however stood his ground as Antonelli was forced off the track.
A few seconds later Antonelli rode out again as Russell would still not relinquish the lead, and he dropped to third because Norris took advantage.
Antonelli protested "he pushed me off" but Wolff told him to "concentrate on the driving" and "not on the radio moaning."
Russell complained about graining but Norris failed to move close enough to launch an attack while Antonelli's late attempt to reclaim second ended in the gravel again and he had to hand back second to Norris because he cut the corner.
The turbulent finale also saw Hamilton drop to sixth behind Piastri and Charles Leclerc in the other Ferrari. Former world champion Max Verstappen was seventh for Red Bull and Arvid Lindblad from sister team Racing Bulls got the final point in eighth.
