Middlesbrough and their Championship rivals have until October 16 to complete domestic transfers, with the Teessiders still looking to make a few more additions before the deadline.
Other second-tier clubs are also set to complete their business over the next week – scroll down and flick through our galley to see every signing made by Championship clubs so far this window:
21. Stoke
IN: Morgan Fox (Sheffield Wednesday), James Chester (Aston Villa), Steven Fletcher (Sheffield Wednesday), John Obi Mikel (free), Jacob Brown (Barnsley) | OUT: Ryan Woods (loan), Adam Federici, Stephen Ward, Mame Diouf, Josef Bursik (loan) Lasse Sorensen (loan) Peter Etebo (loan), Benik Afobe (loan), Badou Ndiaye (loan), Bruno Martins Indi (loan) Photo: Gareth Copley
22. Swansea
IN: Freddie Woodman (loan, Newcastle), Morgan Gibbs-White (loan, Wolves), Marc Guehi (loan, Chelsea), Jamal Lowe (Wigan), Viktor Gyokeres (loan, Brighton) | OUT: Erwin Mulder, Tom Carroll, Jefferson Montero, Courtney Baker-Richardson, Brandon Cooper (loan), Bersant Celina, Joel Asoro (loan), Josh Gould (loan), Barrie McKay (loan), Kristoffer Peterson Photo: David Rogers
23. Watford
IN: Jeremy Ngakia (West Ham), Glenn Murray (loan, Brighton) Stipe Perica (Udinese), Francisco Sierralta (Udinese), James Garner (loan, Manchester United), William Troost-Ekong (Udinese) | OUT: Dimitri Foulquier, Adrian Mariappa, Heurelho Gomes, Jose Holebas, Ryan Cassidy (loan), Cucho Hernandez (loan), Callum Whelan, Abdoulaye Doucoure, Pervis Estupinan, Roberto Pereyra, Luis Suarez, Ignacio Pussetto (loan), Gerard Deulofeu (loan), Jerome Sinclair (loan), Adalberto Penaranda (loan), Danny Welbeck Photo: Richard Heathcote
24. Wycombe
IN: Uche Ikpeazu (Hearts), Giles Phillips (QPR), Jason McCarthy (Millwall), Curtis Anderson (free), Daryl Horgan (Hibernian), Ryan Tafazolli (Hull), David Stockdale (Birmingham), Dennis Adeniran (loan, Everton), Josh Knight (loan, Leicester City) | OUT: Sido Jombati, Craig Mackail-Smith, Jamie Mascoll, Jacob Gardiner-Smith Photo: Catherine Ivill