Watch: P***** off Nico Rosberg throws cap at Lewis Hamilton after rival wins world title

And these two are meant to be teammates.

Lewis Hamilton retained the Formula 1 Drivers' Championship tonight, after winning the United States Grand Prix. The British driver was in a room with Mercedes teammate Nico Rosberg when his victory was confirmed. The pair have been rivals throughout the F1 season, and there's no love lost between them, as proved by this awkward encounter. Hamilton, for some reason only known to himself, decided to toss his dejected teammate's cap to him. Rosberg showed him exactly what he thought of that. https://twitter.com/NapD/status/658388555392241664 Our sympathies lie a little with Rosberg here. Yes, it was somewhat petulant from the German driver, but was it really necessary for Hamilton to toss his cap at him in the first place? There's no need to rub it in, Hamilton.