The January transfer window is here and all 20 Premier League teams will be keeping their eyes and ears open to opportunities to strengthen their squads. But who needs to strengthen, and where, in the next month?

Keep up to date with all the latest news across the whole of the 2025 winter transfer window with the Transfer Centre blog on Sky Sports website and app, and on Sky Sports News; Deadline Day is on Monday February 3 2025,

The Premier League transfer window opened on Wednesday, giving clubs the opportunity to improve their squads for the remainder of the 2024-25 season.

The Premier League transfer window for January 2025 opens soon and some deals have already been lined up for the moment deals can be done. Below you can find out the transfers in and out all 20 teams have done so far, as we will update this throughout the winter transfer window.

Further major transfer reform then followed with the 1995 "Bosman ruling", named after Belgian player Jean-Marc Bosman, which allowed players to move for free once their contracts with clubs had expired. The system of two transfer windows was introduced for the 2002/03 season.

These players arrived mid-season with no time to bed in, but proved to be transformational acquisitions for their clubs

As part of the 1995 Bosman ruling, clubs from other countries can now discuss and finalise pre-contract agreements with players in England

The Premier League transfer window opened on Wednesday, January 1, 2025. This will give clubs the chance to improve their squads for the remainder of the 2024/2025 season and beyond. Teams will be able to make signings until the window closes at 11pm GMT on February 3,

The January transfer window is officially open and Telegraph Sport’s team of football experts look ahead with a club-by-club guide on what business to expect this month.