India's Sania Mirza and her Spanish partner Nuria Llagostera Vives will lock horns with the Russian pair of Ekaterina Makarova and Elena Vesnina in the Women's Doubles title clash of the China Open Tennis tournament in Beijing today. In the semi-finals on Friday, the fifth seeded Indo-Spanish duo defeated the Chinese-Slovenian combination of Jie Zheng and Katarina Srebotnik in straight sets 7-5, 6-1.