Bernie Ecclestone has rubbished reports that Michelin could replace Pirelli next season, insisting he has a contract with the Italian tyre manufacturer.
In recent weeks rumours have surfaced claiming that Michelin could enter Formula One in 2014, replacing the under-fire Pirelli.
According to the speculation, the FIA is even set to put out a tender next month that could start the process.
Ecclestone, however, is adamant his Formula One Management (FOM) already has a deal in place with Pirelli and that it is binding even if the FIA doesn't have a similar contract.
"FOM and Pirelli have a contract," the F1 supremo told SPEED.com
Pressed as to why there was no deal between the FIA and Pirelli, he said: "We don;t need one, I don't think.
"They are nothing to do with commercial. The FIA's position is that they are regulators. They regulate all the regulations that have been agreed."
Pirelli also need not worry about Michelin entering the sport as a competitor as Ecclestone is not in favour of a tyre war.
"Because they will want to pick the teams that they think will win, and they'll pay them a lot more money to take them as opposed to somebody else. We have a deal with Pirelli, anyway."