Changes by the Home Office over who qualifies for a UK work permit has presented Liverpool and their rivals with a fresh opportunity. And the Reds have already been linked with one potential move.
Prior to Britain exiting the European Union, players from the EU could arrive into the English game without having to qualify for a work permit, although those from outside the EU still had to qualify, something that Liverpool have experienced previously with the likes of Mark Gonzalez and, more recently, the now-Nottingham Forest striker Taiwo Awoniyi.
Following Brexit, a new system known as the Governing Body Endorsement was introduced, with all players from outside the UK, regardless of age, required to meet a strict points criteria that took into account their international experience, club experience and the standard of the league that they were arriving from.