NEW YORK (AP) -- John Amaechi is gay, and now the first NBA player to come out publicly is ready to talk about it.

Amaechi, a center who spent five seasons with four teams, is scheduled to appear on ESPN's Outside the Lines on Sunday, and his autobiography Man in the Middle, will be released Feb. 14.

"He is coming out of the closet as a gay man," Amaechi's publicist Howard Bragman said Wednesday.

NBA commissioner David Stern said a player's sexuality is not important.

"We have a very diverse league. The question at the NBA is always 'have you got game?' That's it, end of inquiry," he said.

Three years after his playing career ended, Amaechi has become the sixth professional male athlete from one of the four major American sports (NBA, MLB, NFL, NHL) to publicly discuss his homosexuality.