Sky Sports Football pundit Neville took to social media to write: "I don't know if anyone is still up. But LVG is cracking me up here. Great entertainment!
"One of the best / funniest 20 mins I've ever had."
While Van Gaal also entertained former England cricket captain Michael Vaughan, who tweeted: "The greatest speech of all time... #LVG."
He also jokingly clipped his assistant Ryan Giggs round the head for outbidding him for a charity auction prize of a round of golf with former United striker Dwight Yorke.
There is only one GOLDEN BOY