Liverpool boss Jürgen Klopp seems to be on the cusp of achieving something very special at Anfield, but in order for his side to mount a sustained challenge for the Premier League title next season, he will surely look to sign another world class centre-back during the summer transfer window.
Virgil Van Dijk's arrival from Southampton in January has undoubtedly improved the Reds' defence, but there are still questions marks over whether Dejan Lovren is good enough to partner the Netherlands international.
With this in mind, Klopp should consider a move for Napoli defender Kalidou Koulibaly, who could be available for €60 million (£53 million) this summer, according to Italian media outlet Calcio Mercato.
Standing at just under 6ft 4in tall, the 26-year-old is a imposing specimen, and possesses unrivalled aerial ability.
He is also incredibly quick along the ground, and has a wonderful knack of being able to read the game, which enables him to break up attacks before they develop.
Koulibaly would be the ideal central defensive partner for Van Dijk, and his presence in the Liverpool side would make them a far more solid outfit.
The 18-capped Senegal international could be available this summer, according to Calcio Mercato, and for the reported fee of £53 million, it could prove to be a small price to pay for the Reds, especially if they go on to win the Premier League title next season.
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