Kongolo has signed a five year contract to join the Ligue One champions for €13m (£11.4m). The 23 year old helped Feyenoord to their first Eredivisie title for 18 years last season, making 32 appearances in all competitions, mostly playing as a left back.
Kongolo is a Dutch international after gaining his first cap in 2014 against Ecuador. He hasn’t played for his country though since 2015 when he played 90 minutes in a friendly against Wales.
The defender is likely being lined up as a replacement for Benjamin Mendy at full back who has been hotly tipped to make the move to the Premier League with Manchester City this summer.