In Tennis, world number two Li Na has made a shock exit from the Indian Wells Open at California. In the Women's Singles semi-finals today, the top seeded Chinese was stunned by Italian Flavia Pennetta, in straight sets, 6-7, 3-6. In the other semi-final, second seed Agnieszka Radwanska of Poland stormed into the finals, beating Simone Halep of Romania, 6-3, 6-4.In the Men's Singles, World number two Novak Djokovic and American John Isner today joined Roger Federer and Alexandr Dolgopolov of Ukraine in the semi-finals.Meanwhile, Sania Mirza and her Zimbabwean teammate Cara Black will play for the Women's Doubles title later tonight. The fifth seeded Indo-Zimbabwean duo will take on the top seeded pair, comprising Su-Wei Hsieh of Chinese Taipei and Shuai Peng of China. Sania is the only Indian left in the tournament.