Melbourne: Yani Tseng has unleashed her new, more powerful swing at Royal Melbourne, playing nine holes of practice to hone the tweaks to her technique and familiarise herself with the sandbelt course that will host the Women's Australian Open this week.

Tseng started 2011 with a title at the Women's Australian Open and went on to win a total of 12 tournaments, including two majors and seven on the LPGA Tour to finish with the No. 1 ranking by a wide margin.

The 23-year-old Taiwanese golfer started preparing for the 2012 Australian tournament - which on Thursday kicks off a three-week Asian swing before the LPGA Tour moves to U.S. soil next month in Arizona - by watching how Tiger Woods and Co. handled Royal Melbourne Golf Club's Composite course during the Presidents Cup in November.