Tottenham defender Eric Dier insists he is not struggling with confidence issues amid the club's poor run of form.

Dier has been at fault for several goals conceded during an alarming set of Premier League results that has seen Spurs fall out of top-four contention and leave boss Jose Mourinho under pressure.

Mourinho had hinted Dier, who he regards as a key player at the club, had seen his confidence knocked, but the England international disputed that idea.

That has meant Mourinho may have taken a harder stance with him, but Dier says he is big enough to take it.

He added: "I always say I am a big boy. This is a ruthless profession. I focus on doing the best I can, every time I get an opportunity, I always try to be the best version of myself in training, try to improve constantly and then in games.

"I know I can have good games and bad games but I am always relaxed because I always give everything I have.

"Everything in the outside does not affect me because I am confident in myself and confident that I always try to give the best of myself. Sometimes it goes well, sometimes it goes bad but my effort never changes."

Five defeats from six Premier League games has seen Spurs fall out of Champions League contention and only a quick recovery can get them back in the battle.

Dier has called for unity in the squad to help them build on a 4-0 Europa League win over Wolfsberger and come out the other side.

"It is no secret we are going through a difficult time," he said.

"Now is the time as a group we have got to all step up and work together to push through this moment, starting with this result and taking it into the weekend.

"We know the result is nice, but it is just a small step. We need to find our consistency and level again and everyone is pushing in the same direction to achieve that."