Kalidou Koulibaly is "satisfied" with his new long-term contract at Napoli, according to the centre-back's agent Bruno Satin.

The 25-year-old was strongly linked with a move to Chelsea in the summer transfer window, but revealed earlier this month that he turned down interest from Stamford Bridge to remain in Naples.

The Senegal international has now ended the speculation surrounding his future by renewing his contract with Napoli until 2021 and Satin has said that the agreement "satisfies both parties".

"He's satisfied," Satin told Radio Crc. "We reached an agreement which satisfies both parties an Kalidou is happy. A release clause? I won't discuss that, I'll leave the talking to the club."

Napoli president Aurelio De Laurentiis confirmed the renewal on his own personal Twitter account.