The Reds defence has struggled badly since Jurgen Klopp took over the reins from Brendan Rodgers back in October 2015.
Indeed, Liverpool FC conceded a lot of goals under the Northern Irishman and the issue persisted when the German head coach took over.
The Merseyside outfit signed Van Dijk in a world record deal from Southampton in the January transfer window after a protracted saga.
Van Dijk’s influence on the back four helped Liverpool FC to finish the top four before a 3-1 loss to Real Madrid in the Champions League final in Kiev back in May.
Klopp furthered bolstered his defence with the £67m arrival of Brazil international goalkeeper Alisson Becker from Serie A giants AS Roma.
The 27-year-old has helped Liverpool FC to maintain their unbeaten start to the season, conceding three times in eight games in the Premier League.
Former Manchester United defender Neville credited Van Dijk with helping to improve the Liverpool FC defence since his arrival.
“The back four of Liverpool have proven themselves [against Man City. They didn’t need to do so,” Neville told his Sky Sports podcast.
“They have done well in the last six to eight months.
“Penalty aside, Van Dijk was incredible. Liverpool have good options in defence.”
Van Dijk became the world’s most expensive defender earlier this year when Klopp signed the former Celtic defender after a protracted transfer saga.
Liverpool FC will take on Huddersfield Town in their next Premier League fixture at John Smith’s Stadium on Saturday 20 October.
The Reds will be hoping to secure a return to winning ways following successive stalemates with Chelsea FC and Manchester City.
Klopp is still waiting to win his first major trophy since over the reins from Rodgers in October 2015.
Liverpool FC lost 3-1 to Real Madrid in the Champions League final in Kiev back in May to lose a third successive final under Klopp.
The Merseyside outfit signed Alisson Becker, Fabinho, Naby Keita and Xherdan Shaqiri in the summer transfer window.
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