The chase for a new centre back at the Bridge continues. According to SportItalia (via Football Italia), Chelsea will be offering €40m to Napoli for Senegalese defender Kalidou Koulibaly, along with a 400% raise on his current €1m per-year earnings.

It is believed that Napoli have already turned down offers of €30 million for Koulibaly, and their chairman Aurelio De Laurentiis isn't willing to let go of an important player without a fight. But the €40 million bid should be enough to convince the club to let go of the player, according to the report.

Last season, the 25-year-old formed a solid partnership with veteran Spanish defender Raul Albiol. The duo was a key part of Napoli's runners-up campaign in the Serie A, allowing on average on nine shots per game and conceding only 32 goals throughout the season.

Considering Chelsea's lack of depth and aging core in the centre back department, acquiring Koulibaly — or any other central defender that would offer a real upgrade to our current options — should be a priority in our transfer market dealings. Hopefully the improved offer will be enough to take him from De Laurentiis's firm grasp.