 Complete the following phrase:  Australia left London with a total of three track and field medals at the Olympics. Sprint hurdler and pre-Olympic favorite Sally Pearson became the first woman to win the nations gold medal in the track and field since Cathy Freeman in 2000. Long jumper Mitchell Watt, competing at his first Olympics, became the fourth man to claim the silver medal in that event. Jared Tallent was initially presented with the silver medal for the 