Patrice Evra has signed a four-year contract extension at Manchester United. The France defender, who did not feature in his country's disappointing goalless draw with Romania at Euro 2008 on Monday, has proved to be an astute signing by Sir Alex Ferguson., overcoming a difficult first six months to become one of the best left-backs in Europe.

A member of back-to-back Premier League title squads, the Senegal-born star was part of the Red Devils side which defeated Chelsea in the Champions League final.

And although his present deal still had another year to run, Ferguson has now tied the former Monaco man to Old Trafford until 2012.

"It's a pleasure and an honour to be part of this fantastic side and to be coached by Sir Alex Ferguson and his staff," Evra said. "United is more than a club – it’s a family I am proud to be a part of and that's why it's always been a first choice for me.

“I declared when I arrived that I was coming here not just to play but to win, and United is the ideal place to realise such a dream. It's a privilege to play in front of our fantastic fans and I'm sure the success we've earned in the last two seasons confirms the history of this club and will be the start of something even more special.”

With a number of key figures - including defenders Rio Ferdinand, Wes Brown and Nemanja Vidic - signing contracts recently, Evra's new deal means Ferguson has secured the services of his established back four for the foreseeable future, certainly beyond the two years he expects to remain.

Ferguson added: “Patrice has been a key part of the club’s success in the last two seasons. He's developed into one of the best full-backs in world football and his infectious personality has helped build the incredible team spirit that exists at Old Trafford.”