Shawn Johnson calls it quits on Olympic career – SheKnows Shawn Johnson was not inspired,her parents put her in gymnastics because she had to much energy. Olympic gold medalistShawn Johnson Eastopened up Saturday about her struggles with her body image and drugs after her professional athletic career was over. The knee injury that sparked Shawn Johnson's comeback put an end to it, too. Olympic gymnast Shawn Johnson announces she will be retiring, three weeks before the selection for the 2012 London games.