21 years in charge and Sir Alex is still doing the business at United !

Tonight, Manchester United manager Sir Alex Ferguson celebrates 21 years in charge of the club. Ferguson has undoubtedly been one of the greatest managers of all-time. He has won more trophies than anyone in English football and was the first manager ever to lead an English team to a treble, which came in 1999 when United won the Champions League, the Premier League and the FA Cup.

Ferguson's reign at United nearly ended in 2002 when he announced his retirement plans, but fortunately for the United faithful he agreed to stay at Old Trafford. Ferguson has never been one to sit back and say nothing when somethings bothering him and he's never one to back down in an argument. The likes of Wenger and Mourinho would have that experience first hand.

Happy anniversary Sir Alex and let's hope that you continue to do the business at United.