Play continued at the 2012 U.S. Open on Friday with marquee names dominating inside Arthur Ashe Stadium. The main court has been the site of many quick matches this week, with favorites posting overwhelming victories. Defending women's champion Samantha Stosur continued that trend as she began the day with a straight-sets victory over American Varvara Lepchenko.
Stosur's next opponent scored the biggest upset of the day so far. 18-year-old Laura Robson, who won a silver medal at the Olympics playing with Andy Murray in mixed doubles, defeated No. 9 Li Na in three sets to advance to the fourth round.
Men's No. 2 Novak Djokovic moved on with an easy 6-2, 6-1, 6-2 victory over Rogerio Dutra Silva of Brazil. The Serbian will now face the winner of Julien Benneteau and Dennis Novikov in the third round.
Maria Sharapova followed Djokovic with a straight-sets victory over American Mallory Burdette. Sharapova lost just two games in the match. She advances to the fourth round to meet fellow Russian Nadia Petrova.
Andy Roddick begins the night session at Arthur Ashe Stadium when he takes on Bernard Tomic of Australia at 7 p.m. ET. The former world No. 1 announced on Thursday he would retire after the this year's U.S. Open.