Longtime NBA player Jason Collins is undergoing treatment for a brain tumor, his family announced on Thursday.

Collins, 46, played 13 seasons in the NBA, starting and ending his career with the Nets.

“NBA Ambassador and 13-year NBA veteran Jason Collins is currently undergoing treatment for a brain tumor,” the NBA said in a statement. “Jason and his family welcome your support and prayers and kindly ask for privacy as they dedicate their attention to Jason’s health and well-being.”

Jason Collins playing in his final NBA season in 2014. Paul J. Bereswill

Collins came out as gay in 2013 , becoming the first active athlete to do so.

“If I had my way, someone else would have already done this. Nobody has, which is why I’m raising my hand,” Collins said at the time.

Jason Collins with l

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