Jaime Alguersuari has revealed he has signed to contest the 2010 Formula One season.

It emerged recently that while his Toro Rosso teammate Sebastien Buemi was assured a race seat for next year, team owner Red Bull had yet to finalise the documentation for Alguersuari.

But in a Q and A with his Spanish fans on the Spanish language Marca website, the 19-year-old was asked if his seat for 2010 is "100 per cent guaranteed".

"Yes," the Spaniard answered, "we signed a couple of months ago."

Following the ousting of his predecessor Sebastien Bourdais, Alguersuari made his grand prix debut without any prior testing in July.

Image courtesy of Toro Rosso | (GMM)