Tottenham Under-23 coach Ugo Ehiogu has died at the age of 44.
The former England international collapsed at the club's training centre on Thursday and received treatment after suffering a cardiac arrest before being transferred to hospital.
Tottenham announced via a statement that Ehiogu passed away in the early hours of Friday morning.
"It is with immense sadness that we announce the passing of Ugo Ehiogu, our Under-23 coach," Spurs said.
It is with immense sadness that we announce the passing of Ugo Ehiogu, our Under-23 coach. pic.twitter.com/sSU0yqVfyk— Tottenham Hotspur (@SpursOfficial) April 21, 2017
"Ugo received immediate treatment after suffering a cardiac arrest at the training centre yesterday before being transferred to hospital, where he passed away in the early hours of the morning."
Ehiogu made 355 Premier League appearances during spells at Aston Villa and Middlesbrough, winning the League Cup with both clubs, as well as earning four England caps and scoring once, against Spain.
He also enjoyed spells with Leeds United, Rangers and Sheffield United.
Spurs continued: "The club sends its deepest condolences to Ugo's family.
"Gemma has specifically asked that the family are given privacy at this difficult time.
"We should also like to place on record our thanks to all the medical professionals including those at North Middlesex University Hospital, Royal Brompton Hospital and Harefield Hospital for their care and support."
Villa, for whom the defender played over 300 times, hailed Ehiogu as "a tower of strength" and confirmed plans for a minute's applause before Sunday's second-city derby against Birmingham City.
|BREAKING NEWS: Lyon snap up €10m Chelsea forward Traore|
|Green, Leonard & Gobert lead NBA All-Defensive First Team|
|Van Aanholt excited to learn new ideas from Palace boss De Boer|
|Pospisil sets up Djokovic Eastbourne clash|
|FIFA referees chief praises VAR but sees work to be done|
|You´re a wizard, Hummels: Bayern defender celebrates Harry Potter anniversary|
|Kolarov keen on Lazio return|
|Fiorentina put up for sale by Della Valle family|
|Russian World Cup chief labels doping claims ´made-up news´|
|Djokovic to retain Agassi for Wimbledon|
|Like father, like son: Germain hoping to write his own ´beautiful´ Marseille story|
|He made me - Lue would hire Iverson as a coach|
|Giro crash a Tour de France factor for Thomas|
|New Nantes coach Ranieri wants to ´forget´ Leicester|
|Watford new boy Hughes: Premier League too hard to turn down|
|Confederations Cup Social Diary: No rest for Ronaldo, Trapp still smiling and FIFA honours Marc-Vivi|
|Cavendish confirmed for Tour de France after glandular fever|
|Parish surprised by Allardyce´s Palace exit but excited by De Boer arrival|
|New Edinburgh deal for Lion Dell|
|No stepping stone: De Boer hopes to see out three-year Crystal Palace deal|
|Dutch courage needed? De Boer follows likes of Van Gaal & Koeman to Premier League|
|Kvitova pulls out of Eastbourne|
|Frank de Boer appointed new Palace boss|
|I´m in love with Italy - Former AC Milan star Pato open to Inter switch|
|Portugal v Chile: Pizzi ready for tough challenge as champions of Europe and South America clash|
|De Boer waits in the Eagles´ wings: Can the Dutchman improve on Allardyce, Pardew and Pulis?|
|Help me score 10 goals! - Guangzhou defender Feng sets out Paulinho´s Barcelona move conditions|
|Vettel does not think before he acts - Ricciardo|
|Make Mayweather-McGregor free for fans, urges Hopkins|
|Man Utd must wait a year for Talisca, say Besiktas|
|Vettel v Hamilton: Famous sporting squabbles|
|Jose Mourinho pays tribute after the death of his father|
|F1 title race gets nasty as Vettel and Hamilton clash in Baku|
|Cristiano Ronaldo needs time ´to reflect´ on Real Madrid future|
|Draxler, Kimmich and Can lavish praise on ton-up Low|
|Kalac: Donnarumma´s head turned by greedy Raiola|
|Bayern Munich target Brandt staying at Bayer Leverkusen|
|All Blacks boss Hansen hits back at ´desperate´ Gatland|
|PSG´s Verratti would be perfect fit at Barcelona – Garcia|
|Ballin announces retirement from rugby league|
|Portland Timbers 2 Seattle Sounders 2: Dempsey scores stoppage-time equaliser to deny hosts|
|Santana helps Twins pull off rare feat against Indians, Dodgers win 10th straight|
|Spieth had fun going ´nuts´ after draining bunker shot|
|Stanton officially commits to Home Run Derby|
|Kvitova revels in perfect comeback with Birmingham title|
|Raiola says Donnarumma will meet with Milan amid confusion|
|Drexler says LeBron James is wrong about first ´Big Three´|
|Long-time friend Thomas called incredible Spieth bunker shot|
|Newton: Super Bowl ring only thing missing from my life|
|Spieth holes bunker shot to win Travelers Championship|
|Astros taking ´conservative´ approach with Keuchel recovery|
|Harvick pulls away late to end winless drought|
|Cahill: Once I lead, the others follow|
|Pogba surprised by Mbappe, Dembele talent|
|Donnarumma claims he was hacked over Milan renewal post|
|Rahane century sets India up for Windies hammering|
|Postecoglou rues missed opportunity as Australia go out|
|Confederations Cup Diary: Drax on the beach, and did FIFA just troll Akinfeev?|
|Malan tapped into Voges´ knowledge ahead of dream England debut|
|Donnarumma to discuss AC Milan renewal|
|Mustafi hopes ´brilliant´ Sanchez can stay at Arsenal|
|Pizzi hails returning Bravo as Chile go through in Russia|
|Sevastova ends seven-year title drought with Mallorca triumph|
|Confederations Cup Social Diary: Cahill honoured as Ronaldo posing takes a weird turn|
|Bacca hints at Real Madrid exit for James|
|Draxler sees bright Germany future for goal hero Werner|
|Centurion Low shares the credit after landmark Germany win|
|Balotelli signs new Nice contract|
|Broos confused by VAR farce in Germany defeat|
|Werner´s originals give Germany striking solution|