"You saw Forest was targetting him, I'm not going to say what he has but it's a serious injury and seeing how serious it was, they criticise him on social media and it's pathetic and can't be," Ten Hag told a press conference. "He has a serious injury but he continues to play on Saturday [against Fulham], he fought to be part of this game. He has a very pain threshold, last year he did something similar at Spurs and the semi-final and it shows his leadership and that is very good when you are a leader, it flows into the team."