Let’s take a trip down memory lane. It’s the 17th of October and were 5 minutes into a heated Merseyside derby. Liverpool are bossing the game and lead 1-0 through a Sadio Mane strike and then it happened. The most destructive and calamitous moment of Liverpool’s season had occurred. Jordan Pickford injured Virgil Van Dijk with an ill-timed tackle. The 6ft 4 centre back was figuratively torn in half,…