The January transfer window has produced several surprises with Premier League clubs already surpassing the record spend since the winter window was introduced.
Analysis from Deloitte's Sports Business Group shows the current spend for January in the English top flight as £440m, £10m more than the previous highest in January 2018.
And there is still time for Premier League clubs to do further business.
Here is everything you need to know before transfer deadline day.
When does the transfer window close?
The transfer window opened on 1 January and will close at 23:00 GMT on Tuesday, 31 January for the Premier League.