Tottenham were dumped out of the FA Cup by Norwich last night, but there was more drama after the match as Dier got involved with a fan.
Many people were left stunned after the England midfielder jumped into the stand to get involved with a fan.
According to his coach, Jose, the fan insulted Eric Dier’s family.
Dier climbed into Tottenham Hotspur Stadium’s bottom tier and was involved in a fracas before security intervened.
Mourinho said Dier’s younger brother was “not happy” about the insult.
The Portuguese added: “I think Eric did what we professionals cannot do but probably every one of us would do.”
Mourinho said: “I repeat we professionals cannot do it, but I repeat I am with the player and I understand the player. The fans were with the team until the last penalty kick that we missed.
“This person insulted Eric, the family was there, the younger brother was not happy with the situation.”