Australian Open Badminton tournament begins in Sydney today. Indian shuttlers Pranaav Chopra and Ashwini Ponnappa will pair up to take on Australian combo of Cham Chen and Susan Wang in mixed doubles while R M V Gurusaidutt will lock horns with Malaysia's Ai Wei Jian in the Men's Singles qualifiers today.Qualifying matches will be held today while the main competition will start tomorrow. In Women's singles of the tournament, World number one shuttler and defending champion Saina Nehwal will open her campaign against a yet to be decided qualifier. Two-time World Championship bronze medallist, P V Sindhu will take on former world no. 1 and current eighth seed Wang Yihan of China.