Manchester United's bench and Matthijs de Ligt was incandescent that Brentford were allowed to score while he was off the pitch in Saturday's 2-1 comeback win.<br /><br />The Dutchman was a bystander for Ethan Pinnock's headed goal from a corner on the half-time stroke after being forced off to be treated for a head injury.<br /><br />De Ligt was filmed abandoning his treatment and kicking a ball away in fury after Pinnock's goal while the bench descended into anarchy. <br /><br />Erik ten Hag was booked for his argument with fourth official Gavin Ward and his assistant Ruud van Nistelrooy suffered the same fate after his animated protests towards him.<br /><br />United's manager credited their second-half comeback, which included goals from Alejandro Garnacho and Rasmus Hojlund to their 'fury'. Coach Darren Fletcher was also reportedly kicked off in the tunnel. <br /><br />De Ligt had suffered a nasty head injury early in the game when he collided with the knee of Brentford forward Kevin Schade, leading to lengthy medical attention to stop the bleeding. <br /><br />He had to come off for treatment on his blood-soaked head on two other occasions, one of which was just before half-time when Pinnock scored. <br /><br />Boos rang around Old Trafford in annoyance that the set-piece had been allowed to go ahead by referee Samuel Barrott. <br /><br />The venom was no weaker minutes after the goal. According to the Manchester Evening News, United coach Fletcher 'went ballistic' at half-time in the fourth official ward. <br /><br />Ten Hag claimed Manchester United's 'mad and angry' players used the supposed injustice around Brentford's goal to inspire their comeback. <br /><br />'We were mad at that, we were angry at half-time,' Ten Hag explained after their first Premier League victory in over a month.<br /><br />'It was not perfect but we controlled the game. We didn't concede chances and felt it was an injustice to concede as we did.<br /><br />'Every game we win is important and I think again this team you see the togetherness and the fighting spirit.<br /><br />'Today we added some determination to score goals and that is what we need.'<br /><br />Asked specifically why he and his coaching staff were so irked by the insistence that a bleeding De Ligt was forced off three times for treatment, Ten Hag doubled down on his reasons.<br /><br />'It was dry blood,' he said. 'So it was already treated and just dry blood so none of us understood why he was sent off. I went over and asked him.<br /><br />'It was a huge moment as Brentford is very good at corners and when you miss one of your best headers of course you are disappointed.'
