Patrick Baumann, the secretary general of basketball's world governing body who was seen as a potential IOC president, has died in Buenos Aires after suffering a heart attack. He was 51.
Baumann "unexpectedly succumbed to a heart attack" in the capital on Sunday despite getting immediate medical help, the International Basketball Federation (FIBA) said Sunday in a statement. The death comes as Argentina hosts the Youth Olympic Games.
"Basketball has lost a leader, an advocate and a friend and our thoughts are with Patrick's wife and two children at this tragic time," the Switzerland based FIBA said.
Baumann was FIBA's top administrator for 15 years, and an International Olympic Committee member since 2007.
"We can hardly believe this terrible news," IOC President Thomas Bach said in a statement. "We lose a young and sympathetic leader full of hope who was standing for the future of sport. Our thoughts are with his wife, his children and his family."
NBA Commissioner Adam Silver also praised Baumann's dedication to the game.
"Nobody was more dedicated to the growth of basketball than Patrick," said Silver in a statement. "He loved the game and recognised its power to transform people's lives. He was also a dear friend and colleague who I attended countless games and events with over the past 20 years."