Three days before the 1992 Australian Open final, American Jim Courier and his coach Brad Stine were jogging along the Yarra when Stine made Courier a proposition. Win the Open, Stine said, and I'll jump into the Yarra. OK, Courier replied, but if you jump, so will I. He won and they did � the very day newspapers reported the unhealthy quality of the Yarra. Courier repeated his dip when he won again the following year. He decided not to repeat the swim when he won again two years later. "I got some sort of stomach virus after swallowing some of the water," he explained to the BBC.