REVEALED: Manchester United introduce separate entrances to each dressing room as rivals City return for first time since 2017 tunnel bust-up Man United have made changes in move which should ease post-match tensions Manchester derby in 2017 was marred by heated bust-up outside dressing rooms Around 20 players and staff were involved in a fracas following Man City's win By Mike Keegan For Mailonline Published: 11:00 BST, 24 April 2019 | Updated: 11:03 BST, 24 April 2019 Viewcomments Manchester United have made changes to the set-up of the tunnel at Old Trafford – in a move which should ease post-match tensions. The last Manchester derby at United's home was marred by a heated bust-up outside the dressing rooms following City's 2-1 victory in December 2017. Around 20 players and staff were involved in a fracas, sparked when then United manager Jose Mourinho went to complain about the visitors' noisy celebrations. Man United have made changes to the set-up of the tunnel at Old Trafford as rivals City return The last Manchester derby at United's home was marred by a heated bust-up outside the dressing rooms following City's 2-1 victory in December 2017 As reported by Sportsmail, no police officers will be stationed in the tunnel for Wednesday night's clash, with an optimism that both sides will behave themselves and that club stewards can look after the situation. And it can also be disclosed that a narrow corridor, which had acted as a flashpoint, has now been taken out of the equation thanks to changes made over the summer to the area. Then United boss Jose Mourinho was reportedly hit by an empty plastic bottle two years ago Previously, both sides have headed up the tunnel and then down a tight passageway to both dressing rooms. That space has caused issues following heated fixtures with players often on top of each other at the conclusion of the match. However, in a move insiders say was part of a general refurbishment and not as a result of the derby fracas - which saw Mourinho reportedly hit by an empty plastic bottle and doused in water and milk – a new set-up is in place. Now, there is a separate entrance to each dressing room in the main part of the tunnel. That means that opposing players no longer have to share the previous corridor and that there is a decent amount of space between them at all times. City players celebrated wildly in the tunnel after the match, which started an altercation Share or comment on this article: All rights reserved for this news site dailymail and under his responsibility