Hashim Khan, one of the greatest squash players of all time, has died of congestive heart failure.
He was believed to be 100.
His youngest son, Mo, said in a phone interview that Khan died in his home with family by his side.
Khan was the patriarch of Pakistan's squash supremacy, winning seven British Open titles, including his first in 1951 aged 37, an age when most players retire.
He had beaten the world's top-ranked player, four-time defending champion Mahmoud El Karim of Egypt, 9-5, 9-0, 9-0 to win that title.
He went on to win six of the next seven British Opens.
Khan brought his family to the United States in the early 1960s after being offered a lucrative deal to teach squash in Detroit.
He later took a pro position in Denver and played the game into his 90s.
Mo Khan said of his father's death: "The world just lost the greatest player of all time".