On the outgoing front, Christian Eriksen, Jonny Evans and Victor Lindelof departed at the end of their contracts.
Evans, though, is remaining at the club, following his retirement, after being appointed head of loans and pathways, while Lindelof has joined Aston Villa and Eriksen is now with Wolfsburg.
Tom Heaton signed a fresh one-year deal.
Loan moves have been announced for several youngsters, including Harry Amass, Toby Collyer and Ethan Wheatley.
One senior loan exit for 2025/26 was confirmed when Marcus Rashford joined Barcelona on 23 July, while Alejandro Garnacho departed for Chelsea on a permanent deal at the end of August.
On deadline day, Antony completed a transfer to Real Betis, while season-long switches were made official as Rasmus Hojlund and Jadon Sancho secured moves to Napoli and Aston Villa respectively.