Jason Collins, the first openly gay player in NBA history and a tireless advocate for inclusion in professional sports, died Tuesday of brain cancer at his Los Angeles home surrounded by family. He was 47.

Collins disclosed his Stage 4 glioblastoma diagnosis to ESPN in November, when doctors told him he had between six weeks and three months to live without treatment. He traveled to Singapore this past winter to receive experimental therapies unavailable in the United States, which proved effective enough for him to return home and attend NBA All-Star Weekend in Los Angeles. The cancer returned recently.

"We are heartbroken to share that Jason Collins, our beloved husband, son, brother and uncle, has died after a valiant fight with glioblastoma," his family said in a statement released through the NBA. "Jason changed lives in unexpected ways and was an inspiration to all who knew him and to those who admired him from afar."

Collins played 13 NBA seasons with New Jersey, Memphis, Minnesota, Atlanta, Boston, Washington and Brooklyn before retiring in 2014. He announced he was gay in a 2013 Sports Illustrated cover story, becoming the first publicly gay active athlete across any of the four major North American professional sports leagues.

NBA commissioner Adam Silver said Collins' "impact and influence extended far beyond basketball as he helped make the NBA, WNBA and larger sports community more inclusive and welcoming for future generations."

Collins earned back-to-back calls from Oprah Winfrey and President Barack Obama upon coming out publicly. "President Obama said, 'Congratulations -- what you've done today will have a positive impact on someone you might not ever meet in your lifetime,'" Collins recalled in his November ESPN interview.

A Stanford product who shot nearly 61% for his career, a school record, Collins was selected 18th overall by the Houston Rockets and immediately traded to the then-New Jersey Nets in the 2001 NBA Draft. Last week, he received the inaugural Bill Walton Global Champion Award at the Green Sports Alliance Summit. He was too ill to attend; his twin brother Jarron accepted on his behalf.

He is survived by his husband, Brunson Green; parents Portia and Paul Collins; and twin brother Jarron.