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Napoli will look to bolster their central defence this summer, and it is rumoured by Calcio Mercato that they will look to a fellow Serie A club for that reinforcement.
The Greek defender, has a rumoured £32m release clause, a snippet for the quality of player he is.
Rumours of Kalidou Koulibaly moving on from Naples have been rife for the last 18 months, but Carlo Ancelotti will hope he can partner the Senegal international with the potential new recruit.
Raul Albiol is approaching the tail end of his career and may not be reliable to play at his best in all competitions next season, with Napoli wanting to challenge for the Scudetto and make an impact the in the Champions League.
They may have to battle the likes of Juventus, Manchester United, Arsenal and Tottenham for the signature of Kostas Manolas though, with the european heavyweights all looking to improve defensively.