US golfer Arnold Palmer, viewed as one of the greatest players in the sport's history, has died at the age of 87.
Palmer died at the UPMC Presbyterian Hospital in Pittsburgh, Pennsylvania, where he was undergoing heart tests, the Pittsburgh Post-Gazette reported.
The United States Golf Association also confirmed his death in a tweet calling him "golf's greatest ambassador".
During a long career he won more than 90 tournaments worldwide, including seven majors.
Arnold Palmer was the most important golfer to play the game, says the BBC's golf correspondent Iain Carter.
"His force of charisma put the game on the map and it never dimmed", he added.
http://www.bbc.co.uk/news/world-us-canada-37469392