Real Madrid star Cristiano Ronaldo claims he has no concerns over his professional future. The 28-year-old Portugal international is in the midst of a massive transfer storm involving the Spanish capital club and Premier League champions Manchester United.

His present agreement with the Santiago Bernabeu club expires in 2015 and although club president Florentino Perez has repeatedly stressed the nine-time European champions will do all they can to retain their star player, speculation has linked Ronaldo with a return to Old Trafford.

Cristiano Ronaldo

But in his most recent comment, the forward said: "I know that we will soon reach an agreement. I am feeling very well. I'm calm and not too worried about it."

Ronaldo's comments are likely to further hurt United's chances of re-signing their former star. Ligue 1 champions Paris St Germain and Europa League winners Chelsea were also believed to be interested in the powerful forward, according to the Mail Online.

Ronaldo has repeatedly maintained he is not worried about signing a new deal with Madrid. He told Spanish newspaper Marca: "I have two more years on my contract and I'm not worried about my renewal. I do not care if Mourinho continues or not, I care about myself and Real Madrid."

However, in keeping with this see-saw saga, the Metro reported in midweek that Ronaldo had rejected a new contract.

Meanwhile, Ronaldo was in action on Friday evening, in a 2014 World Cup qualifier against Russia. Real Zaragoza forward Helder Postiga scored the only goal of the game.

Finally, Ronaldo also responded to comments made by Mourinho. The Special One criticised his compatriot for refusing to accept instructions and advice. ESPN quoted Ronaldo as replying: "Do you really think I'm worried about that? Do you really think I'm worried about that?"

Ronaldo had yet another phenomenal season with Madrid this year, scoring 34 goals and creating 10 more from 34 league games. Overall, he scored 55 goals and created 11 from 55 competitive games.