Mark Webber will leave Red Bull at the end of 2013, according to German newspaper Bild.An article reads: "Bild has learned: Webber will not get a new contract at Red Bull." Webber hinted he might quit the team or Formula 1 in the wake of the team orders saga at the Malaysian grand prix, Webber's father Alan and partner/manager Ann Neal have confirmed the veteran will be back at the wheel at the Chinese Grand Prix in April 2013.BUT WHO WILL REPLACE WEBBER?Neal said: "There is no question whatsoever about Mark not continuing this season."Beyond 2013, however, Webber's future is much less clear.Central to Webber's management throughout his career, Flavio Briatore thinks the driver's relationship with teammate Sebastian Vettel is now terminally broken.Asked if one of them will leave Red Bull at the end of the season, the Italian told Rai radio: "For sure. I don't think it can be fixed now."British journalist Bob Mackenzie agrees: "(Red Bull's) next decision will be who will replace the Australian."A video posted on YouTube shows Webber giving Vettel "the finger" at Sepang!Indeed, while Webber is this week surfing in his native Australia, Vettel was at work in the Red Bull simulator at Milton-Keynes.McLaren's Jenson Button - now the most experienced F1 driver on the grid - agrees that the impact of the Sepang saga for Red Bull is "big".Button said: "Even if they sit down and discuss it, it is not going to change the outcome. What has happened is still in their minds. It does not go away."Spain's El Mundo newspaper adds: "Vettel and Webber have never got along, but now a wide gap has opened up between them."