The final hours of transfer deadline day are upon us, with many Premier League clubs still in the race to make late reinforcements to their squads for the last leg of the campaign.
As the likes of Arsenal, Chelsea and Tottenham seek to complete deals for Jorginho, Enzo Fernandez and Pedro Porro respectively, they risk failure to secure their targets ahead of the 23:00pm cut-off.
Transfers are of course complex to understand - one might appear to happen in a matter hours, whilst another can see negotiations staggered over many months. Still, all must follow procedure, which means the completion of a contract between club and player, the transfer agreement between clubs, securing UK work permits, international clearance, and declaration of any additional charges involved.