Last year's U.S. Grand Prix seems like a lifetime ago -- Lewis Hamilton was on the crest of a wave, a newly-crowned three time world champion, while teammate Nico Rosberg cut a beaten figure having lost a second straight title to his teammate and boyhood friend. After losing the race win and the championship with a late mistake in Austin, having had it thrown in his direction by Hamilton, a visibly frustrated Rosberg threw his cap back at his teammate in a moment which went viral immediately afterwards.
Some pundits said Rosberg was dead and buried, that his hopes of ever beating Hamilton were in ruins.