Sir Alex Ferguson has once again rejected speculation of contact between Manchester United and Real Madrid over Cristiano Ronaldo.The United boss rubbished such claims seven days ago, only for further reports to emerge that talks had been held via agents rather than the clubs themselves. Ferguson is evidently unhappy at the prolonged debate over what he feels is a non-issue. And, on the day chief executive David Gill ruled out the possibility of selling the 19-goal winger, even if bids reached £50million, Ferguson waded into the fray once more. 'We have never spoken to an agent. David Gill has made that quite clear and he is right. 'It is such a piece of nonsense. Why would we sell Ronaldo? 'Because it is Ronaldo and he is one of our best players, we have to respond to it. We don't want fans to think we would even consider it. 'David Gill is absolutely 100% correct. We sell the players we want to sell.' Ronaldo finished third - behind Kaka and Lionel Messi - in the recent FIFA world player of the year award and both Real and Barcelona would undoubtedly jump at any opportunity to purchase the 22-year-old, who has expressed a desire to play in Spain at some point in his stellar career. However Gill has warned off any interested parties, insisting that no matter how much is offered, the Red Devils would never part ways with their prize asset. 'There's no chance of us selling him. Absolutely no way, whatever the money,' he said in The Sun. 'He signed a new contract last season to 2012 and we are not a selling club. Alex Ferguson has never let a player go when he was not happy to do so. 'Cristiano is happy here. Alex and Carlos Queiroz know his mind and what he's about. 'Everything about him is Manchester United. He's like George Best, Eric Cantona. 'You can't sell players like that and we are not going to sell players like that.'