LISBON, May 6 (Xinhua) -- Chinese players Li Na and Zheng Jie kept alive their hopes of playing an all-Chinese final following straight-set wins Friday to reach the semi-finals of the Estoril Open.

    Sixth seeded Zheng made the last four by beating Czech Zuzana Ondraskova 6-1, 6-3 while Li advanced to the final four for a second straight year by upsetting Argentine second seed Gisela Dulko 6-3, 6-1.

    Zheng, ranked 49th in the world, will meet top seed Flavia Pennetta of Italy who overcame Eleni Daniilidou of Greece 6-2, 5-7,6-3.

    Li, ranked 70th, will face former champion Emilie Loit, the seventh-seeded Frenchwoman who defeated Spain's third seed LourdesDominguez Lino 6-4, 2-6, 6-2. Enditem