Jurgen Klopp's side beat their fierce rivals 2-0 on Thursday evening.
The two sides met for the first time in Europe at Anfield on Thursday evening, with Liverpool running out 2-0 winners in a highly impressive performance.
They were aided by a disappointing display from Louis Van Gaal’s side, who were lucky to escape with just a 2-0 defeat as David De Gea held Jurgen Klopp’s side at bay on numerous occasions.
And according to Ferdinand, Liverpool played exactly how United used to do when they were at their league dominating best under Sir Alex Ferguson.
“Liverpool give them credit, they deserved the 2-0. They outplayed Manchester United,” he told BT Sport.
“They played like a Manchester United side, intensity wise, used to play back in the day and that’s one of the most disheartening things. Everything they were better than us.”
“At the moment, Liverpool seem to have more game changers in their team than Manchester United.”
The change in style at United is certainly a prevalent issue at present, with them seemingly having lost what once made them great.
Their sides of old were built on solid defensive bases and focused on fast, attacking based play with talented wingers such as Ryan Giggs and Cristiano Ronaldo their main outlets.
They have retained the defensive side, but lost their attacking abilities, with Van Gaal’s side widely criticised for the slow and calculated build up he has introduced.
That’s a far cry from their way of old under Sir Alex, and if a new manager does arrive in the summer, going back to that could be the first step to brining back success.