Ugo Ehiogu has died after suffering a heart attack at Tottenham's training ground on Thursday morning.
The Spurs Under 23s coach collapsed on the club's academy training pitches and received immediate attention from the club's medical staff.
Paramedics were called and he was rushed to hospital by ambulance, but has now passed away at the age of just 44.
The four-cap England international began coaching at the club part-time before being appointed Under 21 boss in 2014, having called time on his own playing career in 2009.