The Formula One leader, Mark Webber, has admitted his long-term future is uncertain, with the Red Bull driver off contract at the end of the year.
The Australian has won the last two grands prix at Barcelona and Monaco to sit atop the driver's championship.
Webber says while Formula One is an uncertain business, he's just concentrating on trying to win the world championship with Red Bull.
He says he's not concerning himself with contract negotiations at this stage of the season.
