Marcelo Bielsa feels his side is strong enough to maintain their Premier League promotion charge, however look set to face competition from an emerging pack - including the likes of Nottingham Forest and Fulham. Scroll down and click through the pages to see EVERY deal done in the second-tier this month ahead of Friday's deadline.
19. Reading
IN: | OUT: Josh Barrett (Bristol Rovers), Jack Nolan (Walsall), Luke Southwood (Hamilton, loan)
20. Sheffield Wednesday
IN: | OUT: Jordan Thorniley (Blackpool), Ashley Baker (Newport)
21. Stoke City
IN: Jordan Thompson (Blackpool) | OUT: Ryan Woods (Millwall, loan), Dan Jarvis (Wrexham)
22. Swansea City
IN: Rhian Brewster (Liverpool, loan), Marc Guehi (Chelsea, loan) | OUT: Kristoffer Nordfeldt (Genclerbirligi), Conor Gallagher (Chelsea, loan), Kristoffer Peterson (Utrecht, loan)
23. West Bromwich Albion
IN: Callum Robinson (Sheffield United, loan)
OUT: Max Melbourne (Lincoln), Callum Morton (Northampton, loan)
24. Wigan Athletic
IN: Kieran Dowell (Everton, loan) | OUT: Owen Evans (Cheltenham, loan), Devante Cole (Doncaster)