5) Virgil van Dijk
Some may dispute his place on the list as, after all, he is technically yet to win a Premier League title, but his impact on Liverpool has been profound.
The Reds were toiling defensively before van Dijk’s arrival, and the turnaround has been dramatic, with the Merseyside club having lost just twice in two Premier League seasons. Not many centre-backs of the last 30 years can claim to be part of teams that have achieved that.