Tottenham have completed the signing of right-back Emerson Royal from Barcelona on a five-year deal.Spurs have spent £25.8million to secure the services of the four-capped Brazil international, according to widespread reports.Emerson, who has spent the last two seasons with Real Betis, will provide greater competition at right-back for new Tottenham boss Nuno Espirito Santo.Transfer deadline day: Follow it live with F365The 22-year-old, who was born in Sao Paulo, first came to prominence in his native country with Ponte Preta and Atletico Mineiro before a move to Europe occurred in 2019.A joint-deal with Barcelona and Real Betis saw the defender ply his trade in Spain, initially with the Seville-based side where he was a regular during each of the last two seasons.Emerson officially signed for the Catalan club earlier this summer but has now joined Tottenham, where he will be able to link up with his new team-mates later this week. We are delighted to announce the signing of Emerson Royal from @FCBarcelona! Welcome to Spurs! Tottenham Hotspur (@SpursOfficial) August 31, 2021The right-back, who featured for Brazil in the Copa America this year, will not have to isolate on arrival in the UK from Spain and could make his debut in Spurs Premier League fixture at Crystal Palace on September 11, subject to international clearance and a work permit being granted.Meanwhile, Son Heung-min is feeling extra responsibility this season after realising he is one of the oldest players at the club now.Speaking after Tottenham made it three wins from three in the Premier League after beating Watford 1-0 at the weekend, Son told the club’s official website: Im now almost the oldest player here after Hugo!I always try to help the young lads. I was talking with Japhet at half-time because I was playing on the right side and the combination of playing together is really important. Its not only me, but all the players take a big responsibility in the changing room, on the pitch, off the pitch, and thats a good sign. Lets keep doing this.Son added on their narrow victory: The lads did a really great job. Obviously, its not an easy game. There has never been an easy game in the Premier League. Ive been here seven seasons now and its never been like, okay, this game we can enjoy.Its always a fight but we did a great job. Okay, 1-0, it sounds like we didnt dominate the game, but we completely dominated the game and deserved these three points. Im so proud of the guys, all working together and bringing a fantastic performance in this amazing stadium with our fantastic fans.