Tottenham boss Jose Mourinho condemned Eric Dier following his altercation with a supporter in the stands after Spurs' FA Cup exit to Norwich, but understands why he did it.

In the aftermath of the penalty shootout defeat to the Canaries, Dier climbed into the lower tier of the West Stand and confronted a fan, who is alleged to have been arguing with his brother.

Footage has gone viral on social media and England international Dier is set to come under investigation from the Football Association.

The German said: "We created something special today because I think it's the biggest success in Norwich City's FA Cup history for nearly 30 years. To go through this round and to do this was a fantastic performance.

"(It is) such a difficult away ground here, Tottenham, and to be there in the end with a win feels great and I'm delighted for my lads.

"I'm pretty happy with the performance, I'm also delighted for all our supporters and for everyone who is connected with Norwich City because we showed a great unity, a great spirit and it was a great performance.

"I totally got the feeling that we deserved to have this amazing win for our club, and for that we are all pretty happy."