"Ronaldo is having a marvellous season and he is enjoying himself at Manchester United," Charlton told reporters at the Laureus sports awards in
"I can see no reason at all why he should want to play for another club.
"It's really destabilising for both the club and the player to have all this speculation about his future.
"All of it is coming from abroad and none from our club."
Charlton also feels
"I would say that it would be one of Sir Alex's greatest achievements at Manchester United if we won the league title," said Charlton.
"Winning the championship has never been so difficult since