The signing arrives just over 24 hours before the transfer window shuts. Boro fans will be hoping that there is another player or two coming in before 5pm on Thursday when it closes. But where is the priority? Click and scroll through to see which position and those of their league rivals.
17. Preston North End
If any business is done, it could be a new left-back to provide cover after Josh Earl was allowed to join Bolton on loan. Photo: Alex Livesey
18. QPR
Boss Mark Warburton, fresh from a shock win over Stoke Cty, wants one more signing to complete his squad overhaul. Aberdeen defender Scott McKenna is a target. Photo: Ian MacNicol
19. Reading
Fresh off the back of signing Lucas Joao the Royals are set to add another striker in the wonderfully-named George Puscas from Inter Milan. Photo: Alex Burstow
20. Sheffield Wednesday
Lucas Joao has left and Jordan Rhodes looks to follow so a forward would be a smart move. Photo: Gareth Copley