Sania Mirza and her Zimbabwean teammate Cara Black will play their semifinal match of the China Open Tennis tournament in Beijing today. The eighth seeded Indo-Zimbabwean duo will take on the top seeded Italian pair of Sara Errani and Roberta Vinci for a Women's Doubles final berth. Sania and Leander Paes with their partners yesterday advanced into the semi-finals, with superb victories. Sania and Cara defeated China's Jie Zheng and her team-mate from Chinese Taipei, Yung-Jan Chan, 6-4, 6-1, while the top seeded Indo-Canadian pair of Paes and Daniel Nestor beat the Spanish team of Fernando Verdasco and David Marrero, 7-6, 6-3, to book a Men's Doubles semi-final berth.