Sebastien Buemi has played down speculation his Seat at Toro Rosso has already been secured.

The Ferrari-powered team is yet to announce its driver plans for next year, but it is suggested that the 20-year-old Swiss has almost certainly been selected to replace Sebastien Vettel in 2009.

The other seat, being contested by incumbent Sebastien Bourdais and Takuma Sato, is apparently the only one still up for grabs.

But even though his uncle Humbert, who is a member of Buemi's management team, is publicly very confident about next year, the young driver said he is not sure if he will ultimately secure the seat.

"If I work well I have a good chance for 2009. But until now I know nothing more than you do," he is quoted as saying by racefreaks.nl.

Buemi said he is expecting to know more shortly.

"We are expecting a decision soon. For the team it is important to make a decision and to start testing with the two drivers that will race in 2009," he added.

Source: GMM