Chelsea have made a €45m bid for Napoli centre-back Kalidou Koulibaly, according to reports.

The defender was one of the Partenopei’s key men as they finished second last season, but wants to leave the club this summer.

Now Gianluca Di Marzio’s website reports that Chelsea have made a new bid of €45m [£37.7m] to bring Koulibaly to Stamford Bridge.

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Aurelio De Laurentiis confirms Napoli's interest in Inter's Mauro Icardi but won't talk of the deal's 'private' aspects.

The Argentine is touted as one of the best options to replace Gonzalo Higuain, but the Nerazzurri are reluctant to sell him.

“We'd like for this operation to be possible, this is clear to everyone,” De Laurentiis told Il Corriere dello Sport. “I don't like to discuss matters that have to remain, as far as possible, confidential.

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Kalidou Koulibaly's agent confirms the player wants to leave Napoli: 'We're leaving for economic reasons'.

The Partenopei were allegedly being offered €55m for the central defender, although they repeatedly stated that they did not wish to sell.

“Let's be clear, I went to meet the president at Dimaro last Saturday,” said the player's agent Bruno Satin. “We summed up the situation after these tense few weeks.

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Chelsea are turning their interest towards Lazio centre-back Stefan De Vrij.

The club was told this week that first choice Kalidou Koulibaly is not for sale, even at €50m, as Napoli lock down the Senegal international.

According to the Sunday People, Antonio Conte has moved his focus on to another Serie A defender, De Vrij.

The 24-year-old Dutchman would be available for around £15m (€18m).

Lazio are likely to capitulate at that price, especially after he missed practically all of last season with a serious knee injury.

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Napoli look set to lose Gonzalo Higuain, but are closer to extending Kalidou Koulibaly’s contract despite Chelsea and Everton interest.

The centre-back is the subject of a bidding war between the Premier League sides that has reportedly reached €50m.

Despite that, Napoli have been adamant they won’t sell the Senegal international this summer.

Sky Sport Italia claim this afternoon that K2 is now open to negotiating a contract extension.

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Chelsea will offer €40m for Napoli defender Kalidou Koulibaly, claim Mediaset Premium, as Everton prepare to go even further.

The bidding war for the Senegal international is spiralling out of control and at this rate it will be difficult for Napoli to resist much longer.

The centre-back just turned 25 last month and was signed from KRC Genk in July 2014 for €7.75m.

According to Mediaset Premium this evening, another offer in the region of €40m will be presented by Chelsea over the next few days.

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Napoli President Aurelio De Laurentiis can’t rule out Kalidou Koulibaly’s departure - “time will tell”.

The centre-back has declared his intention to leave the Vesuviani this summer, with Everton and Chelsea both linked.

“Time will tell,” De Laurentiis said in a Press conference from Dimaro.

“He still has three years on his contract…

“Manolo Gabbiadini? I’d like him to stay, I really like the lad.”

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Everton are prepared to offer €55m for Kalidou Koulibaly, beating Chelsea’s €45m bid, as Napoli begin to wobble.

Sportitalia claim the Toffees are not going to stop their pursuit of the Senegal international.

The defender is the subject of a bidding war between Premier League sides Chelsea and Everton.

According to Sportitalia, Everton warned Napoli that a new proposal worth €55m (£46m) is on the way.

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Sportitalia report Everton are raising their offer for Napoli defender Kalidou Koulibaly to almost €50m (£41m).

There have been reports in Italy and England over the past few days of a bidding war for the centre-back.

Arsenal and Chelsea were the main contenders to Everton, but now Bayern Munich have also joined the race.

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Napoli defender Kalidou Koulibaly is the centre of a €45m bidding war between Everton, Chelsea, Arsenal and Bayern Munich.

The centre-back’s agent complained at the low wages he is currently on and the club responded by threatening to sue him for damages to his image rights.

Chelsea, Everton and Arsenal are battling for his signature, but the bidding war has a new contender.

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