In interviews with USA Today, various male players say they aren’t sure what the reaction would be if a guy on tour announced he was gay.

Basketball player Jason Collins recently announced he was gay to Sports Illustrated and received support from a number of tennis players, including Andy Roddick, Mardy Fish, and the Bryan brothers.

“There’s got to be someone who plays tennis who is gay,” said Sam Querrey. “Whether they are on the tour now or up and coming, I’m completely fine with it.”

Michael Russell said he isn’t sure how guys in the locker room would react.

“It’s pretty open in the locker room,” said Russell. “Maybe they’d feel uncomfortable.”

Fish and Roddick are first two male tennis players to join Athlete Ally, an organization dedicated to ending homophobia in sports.

“I don’t know how an openly gay male tennis player would be received but in my eyes nothing would change,” Fish said. “Hopefully these are the first steps towards a day when this won’t be big news.”

Mike Bryan, 35, said that the world has changed.

“It’s the 21st century,” he said. “Everyone is more accepting. I don’t think anyone would have any issues. But who knows?”