MELBOURNE, AUSTRALIA – JANUARY 14: Serena Williams of the United States and her coach Patrick Mouratoglou watch Venus Williams of the United States in her first round match against Galina Voskoboeva of Kazakhstan during day one of the 2013 Australian Open at Melbourne Park on January 14, 2013 in Melbourne, Australia. (Photo by Vince Caligiuri/Getty Images)
2013 Australian Open – Day 1
