From GMM

Christian Horner vowed to speak with Mark Webber after the Australian driver indicated he is not willing to play a team role in Brazil this weekend.

Webber is out of the running for the world championship, and his Red Bull teammate Sebastian Vettel on Thursday indicated that he is sure he will be able to count on the 32-year-old's assistance in the decisive phases of his own title tilt.

But Webber reacted coolly when asked about his supportive role, answering "I doubt it" to whether team orders will come into play, and also indicating that Vettel would not be the worthiest world champion of the trio in contention.

Team boss Horner told Germany's Bild newspaper: "I will have to ask Mark what exactly he meant. It is clear: the whole team wants this title and we will do everything to get it. The same goes for Mark."

Elsewhere, Webber is reported as clarifying his remarks, insisting that "if I can help Red Bull, of course I will".