The announcement on www.manutd.com ends weeks of speculation that the 22-year-old winger was going to leave Old Trafford and join Real Madrid [ Images ].

United manager Alex Ferguson [ Images ] said: "It is fantastic news, it emphasises the point that Cristiano is happy here and that he is at the right club. He has a great relationship with the team, staff and the fans and he will go on to be one of Manchester United's great players."

Ronaldo told the site: "I am delighted. I spoke with Sir Alex and David Gill about my future and everyone knew that I wanted to stay. I am very happy at the club and I want to win trophies and hopefully we will do that this season."

His form has been outstanding this season and he is hot favourite to be named England's [ Images ] Footballer of the Year next month.