The news will delight United fans, who have been bored to death with turgid football since Fergie retired in 2013.
David Moyes was a disaster and got sacked within 10 months of taking charge, before Van Gaal came in and also failed to make an impact.
The Dutchman won the FA Cup in May to break United’s three-year trophy drought.
But he will be remembered for his negative tactics and outdated methods that went against what United stand for.
Under Fergie, United produced some of the most attacking and entertaining football in the history of the game.
He won a remarkable 38 trophies in 26 years, including the famous treble in 1999 that saw United score twice in stoppage time to beat Bayern Munich and win the Champions League.