Toro Rosso team boss Franz Tost has again claimed that his line-up will remain the same for 2010, despite Sebastien Buemi and Jaime Alguersuari having less than 20 races between them.

Reflecting on the silly season moves confirmed since the Singapore Grand Prix last weekend, Tost confirmed that he expected STR to field an unchanged pairing, despite nothing official having been issued by patron Red Bull.

Tost has already stated that he sees no point in bringing a young talent like Alguersuari into the team for a handful of races - the Spaniard having been called up from the World Series by Renault to replace Sebastien Bourdais from Hungary onwards - only to discard him at the end of the season.

"In case you didn't know, there's no change in our driver line-up [for 2010], so no story there," Tost was quoted as saying by the official Toro Rosso website.

Buemi, meanwhile, appeared in a Red Bull Racing car in the build-up to this weekend's Japanese Grand Prix, completing a demonstration run in front of 4000 people at a local sports centre. Despite a precursor to the wet weather that blighted Friday practice at Suzuka, the Swiss driver also performed a series of donuts, thrilling the audience.

Buemi has little chance of joining RBR full-time next season, however, as both Mark Webber and Sebastian Vettel have been re-signed for another campaign together.