Tottenham Hotspur have completed the signing of the defender Eric Dier from Sporting Lisbon on a five-year deal. No fee was disclosed but reports say Spurs paid around £4m for the England Under-21 international.

“It has always been my ambition and my dream to come back to England and play in the Premier League,” the 20-year-old told the club website.

“I’ve watched a lot of Tottenham and I’ve always enjoyed the way they play, their attacking football. I think, coming from Portugal, that suits me and this season I just want to adapt really quickly to the Premier League and do the best I can.”