Enzo Fernandez has finally signed for Chelsea, becoming the Premier League's record signing after the Blues met his £106.8million (€121m) release clause at Benfica.
Real Madrid has agreed a deal with Rayo Vallecano that will see left-back Fran Garcia return to the Santiago Bernabeu later this year.
Athletic Bilbao has triggered the option to sign Ander Herrera on a permanent basis from Paris Saint-Germain.
A paperwork error from Chelsea's side has reportedly prevented the loan deal that would have sent Hakim Ziyech to Paris Saint-Germain.
Paris Saint-Germain goalkeeper Keylor Navas joined Nottingham Forest on loan as Steve Cooper's side completed a remarkable deadline-beating signing.
Leicester City confirmed the deadline day signing of Socceroos star Harry Souttar on what is reportedly a record transfer fee for an Australian player.
Enzo Fernandez declared his gratitude to Chelsea after his move to the Premier League club was finally formally announced.