China's Li Na continued her winning ways when she downed Barbora Zahlavova Strycova of the Czech Republic 6-2, 6-1 in the third round of the Australian Open on Friday.
The ninth seeded Li was never troubled against Zahlavova Strycova, who seemed to run out of ideas as the match wore on.
It is the second year in a row Li has made the fourth round in Melbourne, and the third overall.
Li made history in 2010 when she reached the semi-finals of the Australian Open, a result that ensured she became the first Chinese player ever to reach the world top 10.
In 2010 she beat Caroline Wozniacki in the fourth round and Venus Williams in the quarter-finals before losing to eventual champion Serena Williams in the semis in two tiebreak sets.
Li has started 2011 in top form, beating Kim Clijsters to win last week's Sydney International, when she came from 0-5 down in the first set to win 7-6 (7/3), 6-3.
She will now play the winner of the match between eighth seed Victoria Azarenka of Belarus and South Africa's Chanelle Scheepers.