Virgil van Dijk has proven himself to be "unbelievable" in almost every aspect since joining Liverpool, but former Reds defender Kolo Toure thinks forwards can cause him more problems by running at him in one-on-one situations.
Netherlands international Van Dijk joined Liverpool from Southampton in January 2018 for a reported £75 million ($98m), at the time a world-record fee for a defender.
His signing helped transform Liverpool from top-four contenders into a team that challenges for titles, as the Reds were only narrowly beaten to the 2018-19 Premier League title while also winning the Champions League.