Ajla Tomljanović: 5 Things About Australian Tennis Star, 29, Who Beat Serena Williams

Michelle Obama, LeBron James, Tiger Woods and More Celebs React to Serena Williams' Likely Final Match

Serena Williams’ Husband Alexis Wears T-Shirt With Photo Of Daughter Olympia, 5, As He Cheers Her On

Serena Williams Retires