Jason Collins, the first openly gay active player in North American professional team sports, has died at the age of 47. His death was confirmed by family members in a statement released on Tuesday. No cause has been disclosed.

Collins, who played for six NBA teams over 13 seasons, came out in a Sports Illustrated cover story in April 2013. His announcement was a landmark moment for LGBTQ+ visibility in sport, drawing praise from figures including President Barack Obama and NBA Commissioner Adam Silver. He signed a 10-day contract with the Brooklyn Nets later that year, becoming the first openly gay man to play in any of the four major North American professional leagues.

In Britain, tributes were led by the sports community. The English Football Association issued a statement calling Collins "a trailblazer whose courage inspired millions". Stonewall, the UK's leading LGBTQ+ rights charity, described him as "a hero who changed the game" and noted his impact on British athletes, citing the subsequent coming-out of rugby player Keegan Hirst and footballer Jake Daniels.

Collins retired in 2014 and remained active as an advocate. He served as an NBA ambassador for social justice and was a vocal supporter of marriage equality. His jersey, a Brooklyn Nets No. 98—a nod to the year of Matthew Shepard's murder—was auctioned for charity.

"Jason was more than a player," said NBA veteran Steve Nash in a tribute. "He showed that authenticity and excellence can coexist. His legacy extends far beyond the court."

The British royal family, through a Kensington Palace spokesperson, offered condolences: "The Queen and the Duke of Cambridge remember Mr. Collins with respect for his contribution to equality."

Collins is survived by his parents and a brother. No memorial has been announced.