Sheffield United are no exception, with ex-Everton and Sunderland man Jack Rodwell already joining this month. Here's a rundown of all the players who have been linked with a move to Bramall Lane so far this month...
9. Mason Holgate - Everton
The ex-England U21 international has kept his place in Everton's side since Carlo Ancelotti took the reins at Goodison Park, but he could be moved on as the ex-Chelsea boss looks to build his own squad. (Photo by PAUL ELLIS/AFP via Getty Images) Photo: PAUL ELLIS
10. Ollie Watkins - Brentford
The sharp-shooter has in fine form for Brentford this season, netting 17 goals in the Championship. He could certainly do a job for the Blades, but convincing the Bees to sell could prove a difficult task. (Photo by Alex Pantling/Getty Images) Photo: Alex Pantling
11. Loris Benito - Bordeaux
The left-back would presumably be brought in as cover for Enda Stevens. He's got five caps for Switzerland, and looks a decent player. Mind you, he only signed for Bordeaux last summer! (Photo by DAMIEN MEYER/AFP via Getty Images) Photo: DAMIEN MEYER
12. Mady Camara - Olympiakos
The Guinea international has some valuable Champions League experience under his belt, and his dominating midfield displays have seen him linked with the Blades. (Photo by BEN STANSALL/AFP via Getty Images) Photo: BEN STANSALL