Kiwi Duncan Smith was a "hard-core regular" at his UK squash club and often played there three or four times a week.
So it came as a "great shock" to members of London's Southbank Club when Mr Smith collapsed and died on May 2 while leaving the court during a social round-robin competition.
The club's director Klaus Steed said the 45-year-old New Zealander had been playing against a very good opponent moments before he suffered a heart attack and died.
Mr Smith's sudden death had "really rocked" the community at the club, he said.
"The club has been greatly affected by his passing away and it came as a shock to all of us given that he was a very good squash player and it was most unexpected."