Senegal international Kalidou Koulibaly has extended his contract with Italian Serie A club Napoli by two years, last season's runners-up confirmed.
The Senegal defender has agreed an improved deal with the side now coached by former Chelsea and Real Madrid boss Carlo Ancelotti until June 2023.
Koulibaly - capped 28 times for Senegal - joined the Italian side from Belgian club Genk in 2014.
He has played 124 games for the club, scoring eight Serie A goals.
Among the 27-year-old's most famous goals last season was his dramatic late header that gave Napoli a rare win against Juventus in Turin and threw open the title race.
Napoli - who finished four points behind Juventus in the title race - have only ever won two Serie A crowns, both with Diego Maradona in their side, most recently in 1989-90.