Pochettino said: "No, because I was so angry with the referee, remember? That was why. I then apologised in my press conference after the game. Of course, it is not going to happen again. I was so upset with the referee and I went like an arrow to the pitch to try and fight with the referee. Big mistake and I say sorry again. "I need to be more calm and relaxed and to show respect to the opponent. I feel really bad, but I apologise again."