The Indian duo of Mahesh Bhupathi and Rohan Bopanna will lock horns today with the Romanian-Swedish pair of Horia Tecau and Robert Lindstedt in the Men's Doubles final of the Cincinnati Open Tennis tournament. In the semi-finals played on Saturday, the sixth seeded Indian pair defeated the Croatian-Brazilian combination of Ivan Dodig and Marcelo Melo in straight sets, 6-4, 6-3; while Tecau and Lindstedt stunned America's Bryan brothers, Bob and Mike, 7-5, 6-7, 10-2.In the Men's Singles final,World Number One Roger Federer of Switzerland will clash with Serbia's Novak Djokovic . In the semi-finals on Saturday, Federer defeated compatriot Stanislas Wawrinka 7-6, 6-3, while Djokovic beat Juan Martin Del Potro of Argentina, 6-3, 6-2.Meanwhile, China's Li Na defeated Venus Williams 7-5, 3-6, 6-1 in a late evening match to reach the women's singles final of the Cincinnati Open tournament. Li will face the winner of the other semi-final between Czech Petra Kvitova and Germany's Angelique Kerber.