Serena got a very shaky call, but that hardly justified her reaction. She messed up. She apologised, albeit belatedly. She got fined. She took some of her aggression out on Liezel Huber and Cara Black in the doubles final. Not a proud moment for her or for tennis, but let’s move on. If the ITF suspends her or fines her further, it will be a miscarriage of justice.