Manchester City have signed Mathys Detourbet from Troyes, the French club have announced.
The 19-year-old has completed a reported €25m (£21.6m) to the Etihad Stadium, with both teams part of the City Football Group.
The forward scored three goals and provided five assists for Troyes in Ligue 2 in 2025-26 as they earned promotion back to the top-flight as champions of the second division.
In the league, Detourbet completed more dribbles than any of his team-mates (44), while he directly contributed to the joint-third most goals (eight).
𝐔𝐧 𝐞𝐧𝐟𝐚𝐧𝐭 𝐝𝐮 𝐜𝐥𝐮𝐛 𝐩𝐫𝐞𝐧𝐝 𝐬𝐨𝐧 𝐞𝐧𝐯𝐨𝐥
— ESTAC Troyes (@estac_officiel) June 27, 2026
Après avoir fait toutes ses classes à l’ESTAC, 𝗠𝗮𝘁𝗵𝘆𝘀 𝗗𝗲𝘁𝗼𝘂𝗿𝗯𝗲𝘁 poursuit son chemin vers Manchester City.
Un symbole fort du travail de formation du club, et une immense fierté pour toute la… pic.twitter.com/YXvoF633Ad
Detourbet, who joined Troyes' youth setup at the age of eight, is reportedly set to spend the 2026-27 season on loan with Monaco.
"Troyes is particularly proud to have supported Mathys' growth both as a player and as a man," said the club.
"The whole club warmly thanks him for his commitment and professionalism."