Tottenham Hotspur chairman Daniel Levy has told supporters they can expect more signings to arrive at White Hart Lane this summer.
The Londoners finished the 2014-15 season having more goals than any other side in the top 12, but have sought to swiftly address that with three defensive additions.
Kevin Wimmer and Kieran Trippier were signed from FC Cologne and Burnley respectively, while on 8 July the club confirmed a move for Toby Alderweireld, who signed a five-year contract with the club despite also having an offer from Southampton.
"The window will be reasonably busy," Levy was quoted as saying by the Evening Standard. "We have already brought in four new players since the winter window and we've done deals for players who have now left."
Levy also hopes the club can continue to build a squad that will be ready for the start of the new Premier League campaign, although he did not rule out late additions.
"At the moment it is fairly relaxed. I would anticipate that as the window goes on, the activity will happen in the last two weeks but we are trying to do business early where we can."
Tottenham's summer business also includes tying Nabil Bentaleb and youngster Harry Winks down to long-term contracts, with Harry Kane and Ryan Mason also penning deals in January.
Mauricio Pochettino could continue to streamline his squad however, with Mousa Dembele and Benjamin Stambouli – signed from Marseille just last summer – other possible departures.
Stambouli, 24, is wanted by newly promoted Watford, according to the Daily Mail, while Dembele will sit down to discuss his future with the manager having struggled for a first team role last season.
"After my holidays, I will talk to the boss and my future at Spurs. We will see," Dembele was quoted as saying by the Evening Standard.