Jason Collins, NBA's first openly gay player, dies at 47; what's his cause of death?

The basketball community is mourning the death of Jason Collins. The 13-year NBA veteran and pioneering figure as the league's first openly gay player has died at age 47 following a battle with stage 4 glioblastoma, a highly aggressive form of brain cancer. 

Jason Collins, NBA's first openly gay player, dies at 47; what's his cause of death?

Collins' family and league insiders confirmed the news Tuesday, just months after he publicly disclosed his diagnosis in late 2025. The announcement comes on the same day as the sudden death of Memphis Grizzlies forward Brandon Clarke at age 29, casting a somber shadow over the NBA community. 

Collins played for several teams during his career, including the New Jersey/Brooklyn Nets, Atlanta Hawks, and Boston Celtics. He made history in 2013 when he came out publicly while still on an active roster, signing with the Nets shortly thereafter and earning widespread praise for his courage. 

After retiring, he continued advocating for LGBTQ+ inclusion in sports as an ambassador and speaker. He revealed his cancer diagnosis in December 2025, describing its rapid onset and pursuing treatment options, including experimental therapies. 

Tributes poured in quickly from across the league, highlighting Collins' resilience both on and off the court. NBA Commissioner Adam Silver and former teammates remembered him as a trailblazer whose legacy extends far beyond basketball. His openness in 2013 helped advance conversations about diversity and acceptance in professional sports at a time when few athletes in major U.S. men's leagues had come out. Collins is survived by his husband and family.

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