Here is what Manchester United had to say today, in light of the match against Liverpool been postponed.
"Following discussion between the Police, The Premier League, Trafford Council, and the clubs, our match against Liverpool has been postponed due to safety and security considerations around the protest today. Discussions will now take place with the Premier League on a revised date for the fixture.
Our fans are passionate about Manchester United, and we completely acknowledge the right to free expression and peaceful protest.
However, we regret the disruption to the team and actions which put other fans, staff, and the police in danger. We thank the police for their support and will assist them in any subsequent investigations."
It is currently unknown when the game will be played.