The cross-Strait pair Peng Shuai and Hsieh Su-Wei beat American Raquel Atawo and Germany's Anna-Lena Groenefeld in the women's doubles third round of the Australian Open on Sunday.
Peng and Hsieh have won 11 doubles title out of a total 12 double final matches, including 2013 Wimbledon Championships and 2014 French Open.
They rose to world No.1 in 2014, first World No. 1 for both China and Chinese Taipei, male or female, in either singles or doubles.
The Cross-Strait pair Peng Shuai and Hsieh Su-Wei. /VCG Photo
In the first set both had a break and tied at 2-2, Peng and Hsieh later took the set 6-4 after breaking another serve at the fifth game.
During the second set, the Chinese pair, who have known each other for 20 years, led with a 2-0 from the beginning, and then won the set in only 35 minutes,
Peng and Hsieh won the match 6-4, 6-2, for a spot in the final eight. They will next face Czech duo Lucie Safarova and Barbora Strycova in quarterfinals.
Hsieh Su-Wei celebrates for her women singles third round victory. /VCG Photo
Hsieh has had a successful winning streak in the singles matches, beating Garbine Muguruza in the second round, and Agnieszka Radwanska in the third round, entering top 16 for the first time in ten years.