Anthony Martial's goal in Manchester United's 2-0 win over Burnley on Sunday was his 25th in total for the club.
The 21-year-old french forward joined United from AS Monaco in a £36million move in September 2015, with the fee potentially rising to £58m.
After tallying his milestone goal, former club Monaco are now due a bonus payment of €10m (£8.5m), according to Get French Football News.
Anthony Martial's opener vs Burnley is his 25th goal for Manchester United, triggering a €10m bonus payment to AS Monaco.
— Get French Football (@GFFN) April 23, 2017
Martial has featured in 83 matches in all competitions for the Red Devils and has scored eight goals in 34 outings this season.
Source: tribalfootball.com