Collins, in a piece for Sports Illustrated, publicly admitted to being gay.
Collins's statement was met by praise from a number of lawmakers including former President Clinton and Rep. Joseph Kennedy (D-Mass.), whom Collins cited in making his decision.
Over his career, Collins has played for a number of basketball teams, most recently the Washington Wizards.
"We commend him on his courage and support him in this effort and hope that his fans and his team support him going forward," Carney added.