Manchester City have signed Lens centre-back Abdukodir Khusanov on a four-and-a-half-year contract until 2029.
Club sources say the fee for the 20-year-old is 40m euros (£33.6m) plus add-ons.
French side Lens only paid 100,000 euros (£84,000) for Khusanov from Belarusian club Energetik-BGU 18 months ago.
However, he has developed rapidly and made 16 appearances for the Ligue 1 side this season, scoring his first goal for the club in a French Cup tie with Paris St-Germain in December.
Khusanov has 18 caps for Uzbekistan and will become the first player from the country to play in the Premier League.