The NBA announced Friday that fans can bid on three autographed Jason Collins jerseys.
The bidding, which can be accessed via auctions.nba.com, begins at noon on Friday and continues through April 22.
Two of the jerseys are game-worn.
All proceeds from the auction will go to the Gay, Lesbian & Straight Education Network and the Matthew Shepard Foundation.
Collins’ No. 98 Brooklyn Nets jersey spent three weeks in the No. 1 spot on the top-selling jerseys list since it went on sale.
All of those jersey sales have also gone to GLSEN and the Matthew Shepard Foundation.
Collins became the first openly gay active male athlete from one of the four major North American professional sports teams on Feb. 23.
Collins wears No. 98 in honor of Shepard, a college student who was murdered in a 1998 anti-gay hate crime. Collins has been a major advocate for the LGBT community. He was upset about a bill Mississippi's governor Phil Bryant signed into law called the Mississippi Religious Freedom Restoration Act and took to Twitter to express his feelings.
I'm deeply disappointed with Mississippi Governor @PhilBryantMS for signing into law a state bill that can make it legal for discrimination
— Jason Collins (@jasoncollins34) April 4, 2014