Mercedes team principal Ross Brawn has rubbished reports he might return to Ferrari and he has insisted he has 'never' discussed the possibility.

Brawn was part of the Ferrari 'dream team' between 1997 to 2006, with the Maranello-based squad taking the Constructors' title six times in succession from 1999-2004, while Michael Schumacher also won the drivers' title five times between 2000-2004.

With the Scuderia struggling again this season, and with Mercedes having brought in Paddy Lowe to succeed Brawn at some point in the future, paddock insiders have suggested Brawn might be tempted back to Maranello.

Brawn, however, is adamant that is not on the cards: "I have never spoken with Ferrari about the possibility of returning. I had many wonderful moments at Maranello and I love Italy, so much so that I'll be in Forte dei Marmi next week [on holiday]. But I am happy at Mercedes." he stated.

"We are doing a great job. The arrival of Paddy Lowe does not change the situation. I have a different role in the team."

Asked about the situation at Ferrari this season, and Ferrari president Luca di Montezemolo's recent warning to Fernando Alonso over his conduct, Brawn added that it just part and parcel of being in F1.

"In F1 we are used to the pressure, especially those working for the teams in the top three or four. We all want to win and I am under scrutiny, as it [Stefano] Domenicali [Ferrari's team principal]. But one of the secrets of success in racing is stability," Brawn stressed. "We [Mercedes] are competitive again thanks to a job that was started some 18 months ago."

Meanwhile, following Lewis Hamilton's win in Hungary last time out, some believe the Brit could now be in a position to really challenge Sebastian Vettel for this year's Drivers' title, despite the 48-point deficit.

What does Brawn think? "For us this is a year of transition, in which we have to put everything in place for 2014, when we have the new turbo engine, yet if there is any opportunity to win the title, then why not [to do it]?" he added.

"It will be very hard, though, because Red Bull is always consistent and Sebastian Vettel does not make big mistakes."