Both drivers get three-place grid drop and one penalty point on superlicence for Q1 blocks; Sunday's race live from 8pm on Sky F1
Monday 30 October 2017 12:40, UK
Kevin Magnussen and Lance Stroll have received a three-place grid penalties for impeding Sergio Perez and Romain Grosjean during US GP Qualifying.
Both drivers have also had one penalty point placed on his super licence for the incident in Q1.
It takes Magnussen onto eight points for the 12-month period, although two will be removed on Monday, while it is Stroll's first penalty point
Magnussen had set the slowest time in qualifying, while Stroll was only 17th, but both were set to move up the grid with Max Verstappen, Nico Hulkenberg, Stoffel Vandoorne and Brendon Hartley taking hefty grid penalties for engine component changes.
Hamilton on pole from Vettel
US GP grid is heavily revised
Magnussen accepted the blame for his incident, claiming his Haas team incorrectly advised him that Perez was not on a flying lap.
"He was on a fast lap but I was told that he was on an out lap so I didn't let him through," he told Sky F1. "I can understand if he's pretty angry about that."I can only say it was a mistake and I'm sorry. I definitely impeded his lap and that gets you a penalty, so I'm expecting a penalty."
Perez made it through to Q3 but could only manage the 10th fastest time and the Mexican said being blocked by Magnussen had compromised his chances.
"It's extremely disappointing. I had the pace to be at the very least P8 or P7 today," Perez said.
"My qualifying was compromised massively by Magnussen when he blocked me in Q1. I had to use an extra set of tyres, which meant I went into Q3 with a single set. So that hurt me a lot.
"He obviously didn't do it on purpose but quite often it's him, or Haas, getting it wrong. I think it's something that they have to improve on."
Grosjean and Stroll nearly collided on the exit of the penultimate corner after the Frenchman came up behind the slow Williams.
Grosjean, already on the verge of track limits, decided to try and pass Stroll on the outside, only for the teenager to also move to the right as he attempted to get off the racing line - forcing Grosjean to take evasive action.
While the stewards acknowledged Stroll did what he could, they deemed it "potentially a very dangerous situation" and said Williams should have done more to warn the Canadian of Grosjean's approach.
US GP Grid heavily revised
Despite both being hit by three-place demotions, Stroll (16th) and Magnussen (18th) actually gain one and two places respectively on the grid due to the fact Hulkenberg and Hartley's engine-change penalties are far larger.
Provisional US GP starting grid
1) Lewis Hamilton, Mercedes
2) Sebastian Vettel, Ferrari
3) Valtteri Bottas, Mercedes
4) Daniel Ricciardo, Red Bull
5) Kimi Raikkonen, Ferrari
6) Esteban Ocon, Force India
7) Carlos Sainz, Renault
8) Fernando Alonso, McLaren
9) Sergio Perez, Force India
10) Felipe Massa, Williams
11) Daniil Kvyat, Toro Rosso
12) Romain Grosjean, Haas
13) Marcus Ericsson, Sauber
14) Stoffel Vandoorne, McLaren
15) Pascal Wehrlein, Sauber
16) Lance Stroll, Williams
17) Max Verstappen, Red Bull
18) Kevin Magnussen, Haas
19) Nico Hulkenberg, Renault
20) Brendon Hartley, Toro Rosso
