Real Madrid star Cristiano Ronaldo has admitted that he will not rule out a possibility of re-signing for Manchester United.

The Portuguese international joined the Old Trafford club from Sporting Lisbon in 2003. He went on to be one of the club legends during his time with the Red Devils and also played a crucial role in helping United win the Champions League in 2008.

Ronaldo joined the 10-time European champions in 2009 and was strongly linked with a move to Old Trafford last summer. However, the former United star rejected a chance to join the Red Devils and signed a new deal, which will keep him at Santiago Bernabeu till 2018.

The Portuguese forward says anything is possible in future as he claims the Red Devils faithful treat him like "god."

"Of course, it was one of my favourite clubs, Manchester, everyone knows that every time when I speak about Real Madrid I should speak about Manchester United, I love it there," the Manchester Evening News quoted Ronaldo as saying.

"I was 18-years-old, I win everything there. The people treat me like a god there so I appreciate it and in the future nobody knows."

United will take on Real Madrid in the International Champions Cup in Michigan on Saturday. Ronaldo has returned to training and many football fans were hoping the Portuguese skipper would be fit enough to face his former club.

However, Real manager Carlo Ancelotti has ruled out the possibility of Ronaldo featuring against his former club on Saturday.

"He has been working individually, separate from the team, but he will not play tomorrow and will train when back at Madrid because we will use him in the Super Cup." Ancelotti explained.

"The plan for Cristiano was right. We gave him one month of rest and started back on July 26, but he needs to recover completely and for this reason we don't want to take a risk tomorrow," the former Chelsea manager concluded.