There are some footballers who just seem like they are born to play for certain clubs.
Those who possess certain qualities - sometimes to do with their approach to the game, sometimes relating to their values or look, sometimes indefinable - which just feel the right fit.
The trick of course is getting them on board at mutually beneficial junctures for both player and club which is not always possible as Liverpool discovered when they were finally able to get Jari Litmanen to Merseyside.