Mark Webber content with third

Red Bull driver Mark Webber has said that he is content with a podium finish in his final United States Grand Prix.

The Aussie, who will be leaving Formula 1 after the season-ending race in Brazil to join Porsche's new LMP1 sportscar programme, finished third behind his teammate Sebastian Vettel and the Lotus Renault of Romain Grosjean.

"I think pole was very important yesterday and it probably cost me a better result today," the 37-year-old said in his post-race interview.

"I'm happy to finish on the podium on what will be my last F1 race here in America - but see you next year with Porsche."

Vettel claim a record-breaking eighth win in a row.