PLEASE NOTE: THIS EDIT CONTAINS CONVERTED 4:3 MATERIALbr br Smashing through one of the final frontiers in U.S. sports, a veteran basketball player has announced he's gay.br br Jason Collins has become the first active player to come out publicly as gay from any of the men's four major sports leagues in the U.S..br br In an account published in a magazine, Collins says he'd become frustrated with keeping his sexuality silent.br br The move has triggered a wave of admiration from fellow sports players to some politicians.br br The White House says President Barack Obama called Collins to express his support.