Canada's 17-year-old swimming sensation Summer McIntosh won her first Olympic gold on Monday while Novak Djokovic triumphed over Rafael Nadal in the latest chapter of their epic tennis rivalry.Elsewhere in the swimming, a nailbiting men's 200m freestyle saw Romania's David Popovici pip Britain's Matthew Richards to gold by a fingertip, winning by just 0.02 seconds. - '20 years later' - With the mercury touching 30 degrees Celsius (86F), the hottest ticket in town was at Roland Garros for the cla