Surging Wozniacki shedding shackles in Singapore

SINGAPORE - Caroline Wozniacki said a more assertive approach is fueling her spectacular start to the WTA Finals after she thrashed world No 1 Simona Halep in straight sets on Wednesday.

The 27-year-old stunned Halep 6-0, 6-2 in just 63 minutes in Singapore to storm into the last four of the year-end tournament for the loss of just four games.

Wozniacki, a renowned counterpuncher, said she has enjoyed playing a more aggressive game in the round-robin format.