Tottenham Hotspur have signed winger Bryan Gil from Sevilla on a five-year contract with midfielder Erik Lamela joining the Spanish side as part of the deal.

Gil spent last season on loan at Eibar, where he scored four goals and registered three assists in La Liga as they were relegated after finishing bottom.

British media reported Spurs will pay 25 million euros ($A40 million) for the 20-year-old, who has three caps for Spain.

Gil is currently at the Olympic Games in Tokyo and started in Spain's 1-0 win over Australia on Sunday.

Gil is new Tottenham boss Nuno Espirito Santo's second signing, after the arrival of goalkeeper Pierluigi Gollini from Serie A club Atalanta on a season-long loan last week.

Lamela's departure ends his eight-year spell with Tottenham, who signed him from AS Roma in August 2013.

The Argentina international made 257 appearances for Spurs across all competitions, scoring 37 goals.

Tottenham, who finished seventh last season, begin their Premier League campaign at home to champions Manchester City on August 15.