Formula One chief executive Bernie Ecclestone insists there will be a full quota of teams on the grid next season despite mounting uncertainty surrounding Red Bull's future.
Red Bull, who won four consecutive driver and team titles between 2010 and 2013, have threatened to quit the sport if they cannot find a competitive engine supplier for next year.
The British-based team have severed ties with current engine supplier Renault for next season, while talks with Ferrari over a deal for 2016 appear to have stalled.
It is understood Ferrari are concerned about the logistical costs of supplying engines to four other teams next year. In addition to Red Bull and their junior team Toro Rosso, Sauber are already on Ferrari's roster, and they will also supply power units to newly-formed American outfit Haas in 2016.
But asked whether there will be 22 cars on the grid next season - with the imminent arrival of Haas - Ecclestone replied: "Yes, for sure.
The 84-year-old, mobbed in the Sochi paddock ahead of Sunday's Russian Grand Prix, added: "Everything's been sorted out so I wouldn't worry about it."
Red Bull's outspoken owner Dietrich Mateschitz has set a deadline of the end of October to decide whether his team, which is based out of Milton Keynes, will continue to operate beyond this season.
At the last race in Japan, Red Bull team principal Christian Horner claimed Mateschitz has grown disillusioned with Formula One.
But speaking about the Red Bull owner, Ecclestone added: "He's never fallen out of love. He just wants to be in a position where he can be competitive. And that's what will happen. He'll be okay."
The future of Formula One itself is also up in the air with Ecclestone claiming earlier this week that the sport could have new owners by the end of the year.
A report in the Financial Times on Friday claimed that CVC, the private equity group which owns Formula One, is closing in on a deal to sell its 35.5 per cent stake in the sport to a US-Qatari consortium headed by billionaire Stephen Ross.
Ecclestone added: "I don't think they want to sell but they may sell. Companies like CVC, their whole business is buying and selling companies. That's what they do.
"If people have been talking to them for the last few months, last few years actually, now there's people that are pushing, pushing, pushing to buy and it's a case of whether they want to sell."
Source: PA
