Real Madrid star Cristiano Ronaldo could follow Jose Mourinho to Chelsea, former club president Ramon Calderon has claimed.

Cristiano Ronaldo, who continues to be linked with a return to former club Manchester United, should only be sold by Real Madrid if a club triggers his staggering €1BILLION buy-out clause, according to defender Sergio Ramos. 

Manchester United are reportedly confident of agreeing a big money deal that would see Cristiano Ronaldo return to Old Trafford this summer.

Former Chelsea striker Tony Cascarino believes Cristiano Ronaldo could join the Blues this summer if Jose Mourinho returns to the club.

Cristiano Ronaldo could be on on the move this summer, according to his agent, as the Real Madrid ace continues to be linked with a return to former club Manchester United.

Real Madrid ace Cristiano Ronaldo, who continues to be linked with a return to former club Manchester United, has refused to be drawn on speculation linking him with the Premier League champions.

Manchester United and Paris Saint-Germain will reportedly battle to sign Cristiano Ronaldo this summer - and United are the bookmakers' favourites to win the race for the Real Madrid ace.

Claims by Brazilian model Andressa Urach that Cristiano Ronaldo cheated on girlfriend Irina Shayk with her have been denied by the Real Madrid star.

Real Madrid coach Jose Mourinho says Cristiano Ronaldo, who has been linked with a return to former club Manchester United, would give the Spanish giants a huge boost by signing a contract extension.

Real Madrid advanced to the semi-finals of the Champions League on Tuesday night, with Cristiano Ronaldo, who has - once again - been a key player for Los Blancos this season, getting on the scoresheet.

Former Manchester United defender Gary Pallister has said his old club want to re-sign Cristiano Ronaldo from Real Madrid.

Manchester United are reportedly looking to finance a deal to bring Cristiano Ronaldo back to the club.

Nemanja Vidic has admitted he would "love" to see Cristiano Ronaldo return to Manchester United.

Cristiano Ronaldo returns to Old Trafford tonight for the first time since joining Real Madrid in 2009 for a world-record £80million as Manchester United play host to Los Blancos in the second leg of their Champions League last-16 tie.

Manchester United manager Sir Alex Ferguson insists he has been given "no encouragement" to launch a summer bid for Cristiano Ronaldo.

Manchester United are reportedly confident of re-signing Real Madrid winger Cristiano Ronaldo should he be on the move this summer.

Former Real Madrid goalkeeper Santiago Canizares believes Cristiano Ronaldo is more likely to join Paris Saint-Germain rather than former club Manchester United if he leaves the Bernabeu.

Real Madrid star Cristiano Ronaldo is reportedly a £55million target for former club Manchester United.

Cristiano Ronaldo, who has been linked with a return to former club Manchester United, could reportedly be sold by Real Madrid this summer.

Cristiano Ronaldo remains optimistic about Real Madrid's chances of progressing to the quarter-finals of the Champions League following Wednesday night's 1-1 draw with Manchester United at the Bernabeu.

Cristiano Ronaldo admits he would find it impossible to turn out for Manchester City - but has refused to rule out a return to former club Manchester United should he leave Real Madrid.

Michael Essien has revealed Real Madrid ace Cristiano Ronaldo was "anxious" about facing former club Manchester United in the Champions League on Wednesday night.

Sir Alex Ferguson has admitted he does not believe Cristiano Ronaldo will return to Manchester United should he leave Real Madrid.

Cristiano Ronaldo has revealed that the most enjoyable period of his career to date was with Manchester United.

Arsenal manager Arsene Wenger believes Real Madrid ace Cristiano Ronaldo could join Paris Saint-Germain should he decide to leave the Bernabeu.

Jose Mourinho could quit Real Madrid this summer, according to Cristiano Ronaldo, as he continues to be linked with a return to former club Chelsea.

Cristiano Ronaldo will discuss his future at Real Madrid at the end of the season as he continues to be linked with a return to Manchester United.

Watch all 302 of Cristiano Ronaldo's goals scored at club level before his 28th birthday here!

Ahead of their upcoming Champions League clash, Cristiano Ronaldo has said he believes "Real Madrid have a better team" than Manchester United.