Arsenal have confirmed the permanent sale of Fabio Vieira to Hamburg, ending the midfielder's three-year spell in north London.
Senegal winger Ibrahim Mbaye has completed a 47 million pound move from Paris Saint-Germain to Aston Villa.
Chelsea have agreed a deal worth up to 40 million pounds for Atalanta defender Honest Ahanor, with the teenager set to spend the remainder of the current campaign on loan at Crystal Palace.
Marc Guiu has completed his permanent move from Chelsea to RB Leipzig after signing a contract with the Bundesliga club until 2031.
Omari Hutchinson has completed a loan move from Nottingham Forest to AC Milan, with the Italian giants securing an option to make the deal permanent at the end of the season.
Hansi Flick has admitted he did not expect Barcelona to have the chance to sign Gabriel Jesus from Arsenal, with the Brazilian forward reportedly joining the Spanish champions in a deal worth an initial 10 million euros.