MONTREAL - Australian Open champion Angelique Kerber is targeting Olympic gold in Rio de Janeiro to build on a successful 2016 that has already seen the German capture her first Grand Slam title. The 28-year-old became the first German to win a Grand Slam crown since Steffi Graf in 1999 when she beat Serena Williams in the Melbourne final in January. Kerber then lost to the American in the Wimbledon final a fortnight ago, and Williams, the top-ranked player in the world, is the defending Olympic champion and the name to beat in Rio. But Kerber, the world No 2, is heading to Brazil buoyed by her success so far this year and eager to get amongst the medals when the Olympic tennis tournament starts on August 6. "I want to win a medal and gold would of course be an absolute dream," Kerber said.