Virgil van Dijk's presence is the key reason Liverpool have surpassed Manchester City in the Premier League pecking order, according to Ruud Gullit.
Netherlands international Van Dijk has been an inspiration for the Reds since joining them from Southampton for a reported £75 million ($98m) in January 2018.
He helped Liverpool to Champions League success last season and the club now lead champions City by 25 points in an extraordinary top-flight campaign, with the defender an ever-present in their 26 matches.
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His compatriot Gullit believes a combination of Van Dijk's brilliance and City's struggles to find a reliable defensive option has led to a major power shift at the top of the table.