Mollie O’Callaghan: Australia’s ‘dolphin in a human body’ set for bumper Olympic haul | Nicole Jeffery

The swimmer is ‘slippery in the water’ while her ‘underwaters are phenomenal’ – and she is being backed to win six golds in ParisThere’s something about Mollie O’Callaghan, and everyone inside Australian swimming knows it. The world 100m and 200m freestyle champion is shaping as one of the most important athletes for Australia at this year’s Olympic Games – one who could return with at least a fistful of medals.O’Callaghan has just turn