Mercedes trackside engineering director Andrew Shovlin has revealed they were not expecting to fight for victory in Las Vegas.

Ferrari were the favourites heading into the weekend but the Silver Arrows surprised everyone by claiming a one-two finish.

"We didn't come to Las Vegas thinking that this track would suit us, so it's been great to see the car working so well," said Shovlin.

"We’ve been quick from lap one of practice on Thursday. We knew from those sessions that the single lap would be strong, but it was very encouraging to see the race pace.

"George did an amazing job managing from the front, covering off safety car risks and making sure he kept his tyres in better shape than the cars behind.

"It was another well-deserved win and the third of his F1 career. Lewis, meanwhile, outperformed all our simulations."