Bayer Leverkusen signed Granit Xhaka from Arsenal.

Granit Xhaka is a Swiss professional footballer who plays as a midfielder for Bundesliga club Bayer Leverkusen and captains the Switzerland national team.

Bayer 04 Leverkusen Fußball GmbH, also known as Bayer 04 Leverkusen, Bayer Leverkusen, or simply Leverkusen, is a professional football club based in Leverkusen, North Rhine-Westphalia, Germany.

Image Credit: davidefrattesi_22/instagram

Inter Milan signed Davide Frattesi from Sassuolo.

Davide Frattesi is an Italian professional footballer who plays as midfielder for Serie A club Inter Milan, on loan from Sassuolo, and the Italy national team.

Football Club Internazionale Milano, commonly referred to as Internazionale or simply Inter, and colloquially known as Inter Milan in English-speaking countries, is an Italian professional football club based in Milan, Lombardy.

Image Credit: davidefrattesi_22/instagram

Paris Saint-Germain signed Manuel Ugarte from Sporting.

Manuel Ugarte Ribeiro is a Uruguayan professional footballer who plays as a defensive midfielder for Ligue 1 club Paris Saint-Germain and the Uruguay national team.

Image Credit: ugartemanu/instagram

AC Milan signed Christian Pulisic from Chelsea.

Christian Mate Pulisic is an American professional soccer player who plays as a winger or attacking midfielder for Serie A club AC Milan and captains the United States national team.

Associazione Calcio Milan, commonly referred to as AC Milan or simply Milan, is a professional football club in Milan, Italy, founded in 1899.

Image Credit: cmpulisic/instagram

Juventus signed Timothy Weah from Lille.

Timothy Tarpeh Weah is an American professional soccer player who plays as a winger for Serie A club Juventus and the United States national team.

Juventus Football Club, colloquially known as Juve, is a professional football club based in Turin, Piedmont, Italy, that competes in the Serie A, the top tier of the Italian football league system.

Image Credit: timothyweah/instagram

Atlético Madrid signed César Azpilicueta from Chelsea.

César Azpilicueta Tanco is a Spanish professional footballer who plays as a defender for Premier League club Chelsea and the Spain national team.

Club Atlético de Madrid, S.A.D., known simply as Atleti in the Spanish-speaking world and commonly referred to at international level as Atlético Madrid, is a Spanish professional football club based in Madrid that plays in La Liga.

Image Credit: cesarazpi/instagram

Inter Milan signed Marcus Thuram from Borussia Monchengladbach.

Marcus Lilian Thuram-Ulien is a French professional footballer who plays as a forward or left winger for Serie A club Inter Milan and the France national team. He is the son of former French international player Lilian Thuram.

Football Club Internazionale Milano, commonly referred to as Internazionale or simply Inter, and colloquially known as Inter Milan in English-speaking countries, is an Italian professional football club based in Milan, Lombardy.

Image Credit: thuram_17/instagram

Cesc Fàbregas retires from football.

Francesc "Cesc" Fàbregas Soler is a Spanish football manager and former professional footballer who played as a central midfielder.

Image Credit: cescf4bregas/instagram

Manchester United signed Mason Mount from Chelsea.

Mason Tony Mount is an English professional footballer who plays as an attacking or central midfielder for Premier League club Manchester United and the England national team.

Manchester United Football Club, commonly referred to as Man United, or simply United, is a professional football club based in Old Trafford, Greater Manchester, England.

Image Credit: masonmount/instagram

Liverpool signed Dominik Szoboszlai from RB Leipzig.

Dominik Szoboszlai is a Hungarian professional footballer who plays as a midfielder for Premier League club Liverpool and captains the Hungary national team.

Liverpool Football Club is a professional football club based in Liverpool, England. The club competes in the Premier League, the top tier of English football.

Image Credit: szoboszlaidominik/instagram