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Jason Collins #34 of the Atlanta Hawks against the Orlando Magic during Game Six of the Eastern Conference Quarterfinals in the 2011 NBA Playoffs at Philips Arena on April 28, 2011 in Atlanta, Georgia. (Photo by Kevin C. Cox/Getty Images) ( 113511156 )

Boston Celtics center Jason Collins battles Los Angeles Lakers center Dwight Howard (12) for a rebound during the first half of their NBA basketball game, Wednesday, Feb. 20, 2013 in Los Angeles. NBA veteran center Collins has become the first male professional athlete in the major four American sports leagues to come out as gay. Collins wrote a first-person account posted Monday, April 29, 2013 on Sports Illustrated's website.(AP Photo/Mark J. Terrill, File) ( Jason Collins Comes Out )

Jason Collins #98 of the Boston Celtics splits the defenders underneath the basket in front of Gerald Henderson #9 of the Charlotte Bobcats during the game on January 14, 2013 at TD Garden in Boston, Massachusetts. (Photo by Jared Wickerham/Getty Images) ( 159508873 )

Boston Celtics' Jason Collins poses during Celtics NBA basketball media day at the team's training facility in Waltham, Mass. NBA veteran center Collins has become the first male professional athlete in the major four American sports leagues to come out as gay. Collins wrote a first-person account posted Monday, April 29, 2013 on Sports Illustrated's website. He finished this past season with the Washington Wizards and is now a free agent. (AP Photo/Michael Dwyer, File) ( Jason Collins Comes Out )

Jason Collins #98 of the Washington Wizards rebounds against the Chicago Bulls at the United Center on April 17, 2013 in Chicago, Illinois. The Bulls defeated the Wizards 95-92. (Photo by Jonathan Daniel/Getty Images) ( 167006078 )

Jason Collins #34 of the Atlanta Hawks against the San Antonio Spurs at Philips Arena on April 5, 2011 in Atlanta, Georgia. (Photo by Kevin C. Cox/Getty Images) ( 112004499 )

Jason Collins #98 of the Boston Celtics takes the shot against the Brooklyn Nets at the Barclays Center on November 15, 2012 in the Brooklyn borough of New York City. (Photo by Bruce Bennett/Getty Images) ( 156481439 )

Jason Collins #34 of the Atlanta Hawks against Jamaal Magloire #21 of the Miami Heat at Philips Arena on October 21, 2010 in Atlanta, Georgia. (Photo by Kevin C. Cox/Getty Images) ( 106161136 )

In this Jan. 20, 2013 file photo, then-Boston Celtics center Jason Collins (98) guards Detroit Pistons center Greg Monroe, right, in the second half of an NBA basketball game in Auburn Hills, Mich. Jason Collins has become the first male professional athlete in the major four American sports leagues to come out as gay. Collins wrote a first-person account posted Monday on Sports Illustrated's website. The 34-year-old Collins has played for six NBA teams in 12 seasons. He finished this past season with the Washington Wizards and is now a free agent. He says he wants to continue playing. (AP Photo/Duane Burleson, File) ( Jason Collins Comes Out )