Tuesday 10 May 2016 21:08, UK
See footage of the Manchester United team bus as it approached the Boleyn Ground on Tuesday night.
The coach, which was transporting Louis van Gaal's side for the final fixture at West Ham's stadium, was hemmed in by supporters for an hour and images emerged of smashed windows.
The incident meant kick-off in the Premier League game was delayed by 45 minutes until 8.30pm. Police were needed to get the players to the stadium and they arrived at 7.10pm.
"It wasn't nice. The coach got smashed up, but we are here now," Manchester United captain Wayne Rooney told Sky Sports.
"I'm sure you'll see the images. It's not for me to say, but it was disappointing of course. It's a big night for West Ham, but I'm sure West Ham as a club will be disappointed with what the fans have done."
West Ham co-chairman David Sullivan was unhappy with the delayed kick-off, claiming their opponents should have arrived early for such a high-profile match.
"I'm gravely disappointed, more for our supporters," said Sullivan. "What people forget is they've got trains and buses to get home and we've got a wonderful, wonderful show after the game for them. Many just can't stay any more.
"Man United should have got here at 4pm. They know it's our last game. They had the same problem at Tottenham a few weeks ago."
Hit the video at the top of the page to see the incident for yourself.