J. K. Rowling comes for man who attributed Serena William's success to being 'built like a man

Serena Williams beat Garbine Muguruza to win Wimbledon today and British billionaire author of Harry Porter series, J.K Rowling praised Serena for the feat only for a man to say the reason Serena is successful is because she's 'built like a man'. That didn't go down well with JK who called him an idiot. More tweets after the cut...