Liverpool's defensive rock making Klopp's men the team to fear once again

It is not by chance they are the only undefeated team in the Premier League this season. Nor is it a fluke this win leaves them unbeaten in 20 matches in all competitions, the best stretch of Klopp's reign

Liverpool's Sadio Mane (left) celebrates scoring their side's first goal of the game with Virgil van Dijk during the Premier League match at Vicarage Road, Watford. Picture: Tess Derry/PA

Virgil van Dijk and Joel Matip were the only two Liverpool outfield players not dashing to congratulate Roberto Firmino after he completed his hat-trick with his side's fifth goal in this emphatic victory.

The two pillars of Jurgen Klopp's defence were making their way in their own time but were more preoccupied by an animated discussion about a potentially dangerous Watford attack that had just been averted.