Premier League teams have been fairly quiet when it comes to transfer business, so far.There are, of course, plenty of transfer rumours going about as several sides plot to dethrone the newly crown champions Leicester City.But, on the Continent, teams are feverishly trading players as they look to get their squads sorted sooner rather than later.Most clubs are trying to ensnare targets involved in Euro 2016 early, to save themselves from being gazumped, or having to negotiate a deal in August as the season is close to beginning.So, which moves have already been made?Click the right arrow above to see some of the biggest transfers of the summer so far…WHEN DOES THE TRANSFER WINDOW OPEN? ALL YOU NEED TO KNOW HERE 8 Diogo Jota (Atletico Madrid from Pacos Ferreira) – Pacos Ferreira arent exactly renowned for producing stars over in Portugal but Atletico Madrid have deemed 19-year-old Jota worthy of a five-year deal and a 7.2million fee. Barcelona, Benfica, Arsenal and West Ham all reportedly scouted the player, who netted 12 goals in 31 appearances, including a winner against Porto in April. 8 Mats Hummels (Bayern Munich from Borussia Dortmund) – Click the right arrow for more top transfers already sealed ahead of the transfer window opening – Set to play a big role for Germany at Euro 2016, the Dortmund centre back has joined their title rivals Bayern, with whom he started his career. At 27, the ball-playing defender is about to enter his prime and manager Carlo Ancelotti will be delighted to have secured his services. Mario Lemina (Juventus from Marseille) – The Gabonese 22-year-old has seen his loan deal turned permanent after a promising start to life in Turin. For the princely sum of 9.5m, the central midfielder, who is also incredibly versatile, could form a partnership with Paul Pogba in Serie A, which would leave opponents quaking in their boots. 8 8 Ousmane Dembele (Borussia Dortmund from Rennes) – He may only be 19 and have just 26 league appearances to his name at Rennes but, such is his talent, Thomas Tuchel has splashed out £28m on Dembele and handed him the no.7 shirt at the Westfalenstadion. No pressure. Joel Matip (Liverpool from Schalke) – It wasnt long before Jurgen Klopp raided the Bundesliga for a new signing. Already landed on a free, Matip will strengthen a Reds back line which has faced criticism this season. The Cameroon star is only 24 and joins from Schalke with Champions League experience, and his new boss rightly claims he has saved the club millions. 8 8 Renato Sanches (Bayern Munich from Benfica) – The precocious teen midfielder had seemed on course for a switch to Manchester United with all the talk linking the Red Devils with the Portugal starlet. Instead, though, Bayern swooped for Sanches in a deal which starts at 35m and could rise to an incredible 80m. He could be one to watch at Euro 2016. 8 Josip Brekalo (Wolfsburg from Dinamo Zagreb) – Just 17 years old, Croatian teen Brekalo will be given time to settle in at the Bundesliga, but there is no hiding from a fee which could reach 10m. A direct dribbler, capable of beating his man with ease, thanks to his blistering pace, he is likely to be on the fringes to start with, but could make an impact. Keep your ear out for his name. 8 Kevin Volland (Bayer Leverkusen from Hoffenheim) – After several season linked with moves away from Hoffenheim, the Germany international has finally jumped ship. The player admitted he loved his time with his previous club but couldnt turn down the lure of Champions League football. The deal, reportedly worth around £14m, could see him form a lethal partnership with Javier Hernandez.