Veteran NBA referee Bill Kennedy has revealed he is gay after being the subject of homophobic insults from Sacramento guard Rajon Rondo.

Kennedy was confronted by Rondo after ejecting him on two technical fouls during the game between the Kings and Boston Celtcs in Mexico on 3 December.

"I am proud to be an NBA referee and I am proud to be a gay man," said Kennedy, an official for 18 seasons.

"My actions were out of frustration and emotion, period," tweeted Rondo.

"They absolutely do not reflect my feelings toward the LGBT community. I did not mean to offend or disrespect anyone."

The Sacramento player was banned for one game for his actions.