We take a closer look at some of the players who have been linked with a move to Teesside this season – scroll down and flick through our picture gallery to see some of the names which have been mentioned:
9. Jonson Clarke-Harris - Bristol Rovers
Reports in Bristol claimed Boro were interested in Rovers' top scorer at the start of October. The 25-year-old has two years remaining on his contract at the Memorial Stadium. Photo: Alex Davidson
10. Wes Burns - Fleetwood
The winger was linked with a move to the Riverside in the summer but remained at Fleetwood. Burns has been a regular for Joey Barton's side this season but has netted just one goal in League One. Photo: Michael Regan
11. Marcus Maddison - Peterborough
Another Posh player who is reportedly in demand. A move in January appears unlikely though, with Maddison out of contract at the end of the season. Photo: Alex Pantling