No, both teams are gay.
Why? I understand, that tennis is not men's game ( rather woman's play ) and the men, who play tennis are rather delicate. Majority of tennis player have very nice shanks ( this is a lower part of leg ). We cannot compare tennis player to strong men or soccer player. But I don't think, that they are gays. I think, that majority of them are heterosexual. Maybe they look delicate and womanlike.