Boro’s main priority ahead of the next campaign is to sign a new striker, while the Teessiders will also be looking for a new first-choice goalkeeper and potentially a couple of wide players.
With finances tight throughout the EFL, clubs will be searching the free agent market, with several players set to see their current contracts expire in the coming months.
Boro also have five players, Britt Assombalonga, Ashley Fletcher, Marvin Johnson, Nathaniel Mendez-Laing and Jordan Archer, who are set to become free agents at the end of this season.
Other players such as Yannick Bolasie, Neeskens Kebano and Marcus Bettinelli are nearing the end of their loan deals.
We’ve taken a closer look at each club competing in the Championship for the 2020/21 season and the players whose futures remain uncertain.
. LONDON, ENGLAND - MARCH 03: Alex Mowatt of Barnsley scores their sides second goal during the Sky Bet Championship match between Queens Park Rangers and Barnsley at The Kiyan Prince Foundation Stadium on March 03, 2021 in London, England. Sporting stadiums around the UK remain under strict restrictions due to the Coronavirus Pandemic as Government social distancing laws prohibit fans inside venues resulting in games being played behind closed doors. (Photo by Clive Rose/Getty Images)
Barnsley midfielder Alex Mowatt. Photo: Clive Rose
. Birmingham
Jon Toral (option for a further year), Alen Halilovic, Caolan Boyd-Munce, Josh Dacres-Cogley, Steve Seddon. Photo: Gareth Copley
. Blackburn
Ryan Nyambe (option for a further year), Joe Rothwell, Joe Rankin-Costello, Amari'i Bell, Lewis Holtby, Bradley Johnson, Elliott Bennett, Corry Evans, Stewart Downing. Photo: George Wood
. Bournemouth
Steve Cook, Adam Smith, Jack Wilshere, Asmir Begovic, Junior Stanislas. Photo: Naomi Baker
. Bristol City
Andreas Weimann, Famara Diédhiou, Nathan Baker, Jamie Paterson, Jack Hunt, Henri Lansbury, Adrian Mariappa, Tommy Rowe, Danny Simpson, Marley Watkins, Hakeeb Adelakun, Liam Walsh, Rene Gilmartin. Photo: Jan Kruger
. Coventry
Dominic Hyam (option for a further year), Liam Kelly, Kyle McFadzean, Maxime Biamou, Jordan Shipley, Amadou Bakayoko, Jodi Jones, Jordon Thompson (club option one year), Josh Eccles. Photo: Harry Trump
2. Birmingham
Jon Toral (option for a further year), Alen Halilovic, Caolan Boyd-Munce, Josh Dacres-Cogley, Steve Seddon. Photo: Gareth Copley
3. Blackburn
Ryan Nyambe (option for a further year), Joe Rothwell, Joe Rankin-Costello, Amari'i Bell, Lewis Holtby, Bradley Johnson, Elliott Bennett, Corry Evans, Stewart Downing. Photo: George Wood