Third-seeded Zheng Jie from China beat Kaia Kanepi of Estonia 6-4, 6-4, following the step of her compatriot Li Na, second seed, to advance into the quarterfinals of the Stockholm Open in Stockholm on Thursday.

Li Na eased to the quarters by beating Yulia Beygelzimer of Ukraine 6-4, 6-0 on Wednesday. With the victory, Li set up a next round match up with Tsvetana Pironkova on Friday after the Bulgarian upset fifth seed Catalina Castano of Colombia 6-4, 6-2 on the same day.

Another quarterfinal match on Friday pitched top-seeded Russian Anastasia Myskina against Martina Sucha of Slovakia.

Myskina, who lost last year's final to Katarina Srebotnik of Slovakia, was forced to a first-set tiebreak for the second straight day to beat Polish qualifier Urszula Radwanska 7-6 (3), 6-3.

Sucha advanced due to the retirement of Swiss Emmanuelle Gagliardi with injury when trailing 4-0 in the third set. Sucha lost the first set 6-4 and won the second 7-5.

(Xinhua News Agency August 11, 2006)