In Australian Open Tennis, in the mixed doubles category of the first Grand Slam of the season, Rohan Bopanna has begun his campaign on a winning note. Bopanna with his team-mate Canada's Gabriela Dabrowski defeated Kiwi-Slovenian team of Michael Venus and Katarina Srebotnik 6-4, 7-6, 10-7.Second seeded mixed doubles duo of Sania Mirza and Croatia's Ivan Dodig, will also begin their campaign later today. They will take on German-Croatian team of Laura Siegemund and Mate Pavic. Meanwhile, in the Singles, world number two Serena Williams, Rafael Nadal, Denis Istomin, who stunned defending champion Novak Djokovic in the second round, and Milos Roanic are among those who will be seen in action in the third round.