Sara Errani of Italy has entered the women's singles final of the French Open tennis championships. In the first semi-final played in Paris today, 21st seeded Errani upset sixth seeded Samantha Stosur of Australia in three sets 7-5, 1-6, 6-3. The second women's singles between Maria Sharapova and Petra Kvitova is being played tonight.The mixed doubles final between the Indian duo of Mahesh Bhupathi and Sania Mirza and the Mexican-Polish combine of Santiago Gonzalez and Klaudia Jans Ignacik is also scheduled for tonight.