The fourth round matches of the Wimbledon Tennis Championships will be played in London today. In men's singles, Spain's World Number one Rafael Nadal will take on Juan Martin Del Potro of Argentina while World Number 2 Swiss Roger Federer will clash with Michael Youzhny of Russia. Andy Murray of Great Britain will take on Richard Gasquet of France. The third seeded Serb Novak Djokovic will play Michael Llodra of France. In Ladies Singles, while Caroline Woziacki of Demnark will meet Dominika Cibulkova of Slovakia, Russian Maria Sharapova will play Shuai Peng of China in the fourth round. Williams sisters of the US will also play their respective matches today. Serena Williams will play Marion Bartoli of France while Venus Williams will take on Tsvetana Pironkova of Bulgaria. In the mixed doubles, the Indo-Russian pair of Mahesh Bhupathi and Elena Vesnina will take on the Australian combine of Stephen Huss and Anastasia Rodionova in the second round.