"He is one of the best middle distance freestylers in history - if not the best. Over the past four years, he has carried himself as one of the great sportsmen," said Phelps, whose disappointment in failing to emulate Mark Spitz's seven golds in one Games seemed to be softened by the fact that it should be the Aussie who ended the adventure. "He has the perfect stroke. It's unbelievable how he manages to move through the water. When he was swimming in the next lane alongside me in the semi-final, I said to my coach 'wow, he makes some big waves'.