Inside football's biggest transfers - with the hidden men who make them happen: Beer and pizza with Jurgen Klopp, a gasping goldfish, the mad requests from stars and what it's like to move Cristiano Ronaldo and Mo Salah

So how does the process actually work? What are the pitfalls? And does it ever all go horribly wrong? Daily Mail Sport spent deadline day with the men responsible for making the move after the move.

Well, for a start, no one day is the same as any other. And that's part of the challenge. Processes differ with calls coming from players, agents or clubs directly and more often than not, the relocation conversation happens after the move is confirmed.

There are occasions where a player has three houses in the same city due to extended family and family security, while sometimes players move within months of moving to be closer to a team-mate or someone from their country.