Di Resta focused on his own reputation in bid for top 2014 F1 seat

Mark Webber's decision to leave F1 for Porsche's sportscar programme means champion team Red Bull has a seat open next year.

With Kimi Raikkonen among the Red Bull contenders and Romain Grosjean's future uncertain, Lotus could have two vacancies for 2014, while Felipe Massa's current Ferrari deal is up at the end of this season.

So far di Resta has not been strongly mentioned among the candidates for any of the frontrunning seats.

"There's nothing I can do," he said when asked if this frustrated him.

"It is what it is. I'm only trying to do what I can do.

"I've built my reputation in Formula 1. I want to be in a winning seat, but it's [down to] people's board's decisions.

"I've still got a lot of races with Force India this year, and when it's exciting like it was at Silverstone, I'll keep concentrating on that and let other people do the work in the background.

"Where I am next year I don't know, but there are many points up for grabs. That is the important bit, keeping your reputation."

Di Resta qualified fifth for the British Grand Prix last weekend but was put to the back for a weight infringement. He recovered from there to ninth.

Earlier this season he came close to his maiden F1 podium at the Bahrain GP. The Scot is currently eighth in the world championship.