Glamour's cover star and 23-time Grand Slam champion Serena Williams responds to popular misconceptions and assumptions about tennis and the athletes who participate in the sport. Can you play tennis while pregnant? Should you not wear makeup while playing sports? Is singles harder than doubles? Is it better to play in skirts rather than shorts? Do professional tennis players hate Wii Tennis? Find out what myths are false and which ones ring true as Serena sets out to clear the air.