Former Manchester United players Gary Neville and Roy Keane have defended the club supporters for their protest against the Glazer family which forced the game against Liverpool to be postponed.
Hundreds of fans gathered outside Old Trafford and the hotel at which United players were staying.
A large section of this crowd also broke inside the stadium by battling past stewards and safety barriers.
Green and golden flares were set off and anti-Glazer banners were waved. The pitch was left slightly damaged and corner flags were stolen.
Since the takeover in 2005, the Glazer family have failed to get the fans on their side.
Their participation in the proposed European Super League strained the relationship to the point that fans no longer accept Glazers’ ownership.
The clash between United and Liverpool became the first game in the Premier League to be postponed due to fan protests.
“This is a consequence of the Manchester United owners’ actions two weeks ago,” he said. “There is a general distrust and dislike of the owners, but they weren’t protesting two or three weeks ago.
“My view is quite simply that they’re going to make a fortune if they sell the club and if they were to put it up for sale now I think the time would be right, and it would be the honourable thing to do.
“The Glazer family have been resilient and stubborn for many, many years. I think they are struggling to meet the financial demands that this club needs and have done for some time.
“If you think about the club they picked up in 2004, it had the best stadium in the country, one of the best in Europe, it had the best training ground in this country, and probably one of the best in Europe.
“It had a team that was consistently getting to Champions League quarter-finals, semi-finals and finals regularly and winning the league every season or every other season.
“If you look at the club now, this stadium I know it looks great here but if you go behind the scenes it is rusting and rotten.
“If you look at the training ground it’s probably not even the top five in this country, they haven’t got to a Champions League semi-final for 10 years.
“We haven’t won a league here at Manchester United for eight years. The land around the ground is undeveloped, dormant and derelict while every other club seems to be developing the facilities and the fan experience.
“All football fans should unite today behind what Manchester United fans have done today because what happened two weeks ago was really dangerous for English football.
“Today there is anger. I would hope that tomorrow it switches towards mobilisation towards reform, regulation and behind the fan-led review.
Roy Keane is another legendary Red Devil who spent almost 13 years at Old Trafford. He also voiced his support towards fans and went ahead to term this protest as “just a start”.
He said: “The leadership of the club has not been good enough. When they look at the owners, they feel it’s just about making money.
“The United fans have looked at the Glazers and thought enough is enough. They’re doing it because they love the club.
“Some people won’t agree with it, but sometimes you have to put a marker down for people to take notice.
“This will go out all over the world and hopefully the owners of Manchester United will sit up and take note.
“These fans are deadly serious and this is just the start of it from United fans, I can guarantee you.
The most surprising comments came from Jamie Carragher. The former Liverpool defender also applauded the actions of the protestors.
He said: “Do we want to see supporters storming stadiums left, right and centre and getting games called off? No, we don’t. But I’m not someone who will sit here and criticise Manchester United fans for today.
“There will always be idiots who get involved in this but what Manchester United fans have done today I think is actually a good thing in terms of protest and not being happy at what’s going on at the club.”