Gregory Mertens started his career in the youth team of hometown club Anderlecht
Belgian footballer Gregory Mertens has died of heart failure, three days after collapsing during a match.
The 24-year-old Lokeren player was given CPR during the first half of Monday's reserve-team game with Genk but did not recover after spending time in hospital on a life-support machine.
A club statement said: "The medical staff have done everything to save Gregory, but they finally had to acknowledge their impotence.
"Gregory passed away at around 16:30."