Sebastian Vettel and Mark Webber will not stay together at Red Bull beyond the end of this season, according to Flavio Briatore, who said he had spoken to the Australian in the aftermath of Sunday's controversial Malaysian Grand Prix and been told that the relationship was fractured beyond repair.

"I don't think it can be sewn back together again," said Briatore, the former Renault team principal who has been a part of Webber's management throughout his grand prix career.

Fallout ... Sebastian Vettel, right, and Mark Webber. Credit:AFP

Asked if he expected either Vettel or Webber to leave Red Bull at the end of this year's campaign, the Italian replied: "For sure. Last year already there were problems."

Webber remains furious with triple world champion Vettel for breaching team orders at Sepang by overtaking him in the final laps and has returned home to Australia with Ann Neal, his English partner, for a fortnight's rest ahead of the next race in Shanghai.