Jose Mourinho takes swipe at Cristiano Ronaldo.

If Chelsea had any hope that Cristiano Ronaldo could follow Jose Mourinho to Stamford Bridge they can forget it now after the new Blues boss labelled his former player a know-it-all.

Ronaldo revealed last year that he was unhappy at the Bernabeu and has indicated he will not renew his contract beyond 2015. Real are determined not to sell one of the biggest stars in the game but Chelsea would be one of the few clubs that could afford him should the Spanish giants decide to cut their losses.

However, Mourinho, who announced his return to the West London outfit on Monday, revealed that scenario was highly unlikely after the pair fell out towards the end of his tumultuous three-year reign in Madrid.

“He (Ronaldo) had three great seasons with me, I don’t know if they were the best in his career because at Manchester United he had great seasons too,” Mourinho said. “The only problem has been that a coach criticises him from a tactical point of view trying to improve him and he has not accepted it well thinking, perhaps, that he knows it all and that the coach could not help him become any better.”

Madrid president Florentino Perez had said that he expected Ronaldo to end his career at the club. However, the Portuguese has been constantly linked with a return to Manchester United while cashed-up French heavyweights Paris Saint-Germain are also believed to be waiting in the wings.