Atletico Madrid's €126million man Joao Felix is the latest Benfica gem to keep the money rolling in for the Portuguese champions.
The brother of Bayern Munich target Callum Hudson-Odoi has helped take Chelsea youngster Jamal Musiala to the Bavarian giants, he claims.
Erik Durm said his season at Huddersfield Town was "a great experience" after he returned to the Bundesliga with Eintracht Frankfurt.
Ousmane Dembele is reportedly a target for Bundesliga champions Bayern Munich and Franck Ribery has urged his old club to spend.
Manchester City forward Raheem Sterling has spent his entire senior career in the Premier League, but he would like to play abroad one day.
Aaron Ramsey and Diego Godin have already signed for new clubs, while Ander Herrera and Mario Balotelli are among the big-name free agents.
Valentino Lazaro has joined Inter from Hertha Berlin after agreeing a four-year contract at San Siro.
New Borussia Dortmund signing Mateu Morey says he will have "a lot to offer" after joining on a free transfer from Barcelona.
Liverpool midfielder Marko Grujic will stay with Hertha Berlin in the Bundesliga for the 2019-20 season.
Sarpreet Singh, 20, will play for Bayern Munich II after signing a three-year deal with the German giants.