The 2012 US Open is almost at its halfway stage and top seeds Andy Murray, Roger Federer and Serena Williams will be in action on Day Six of the final Grand Slam title of the year.

Laura Robson
Robson become the first British woman to reach the fourth round of a Grand Slam in 14 years

The highlight of the fifth day was Great Britain's Laura Robson and her second upset in as many matches at Flushing Meadows. The 18-year-old beat former World No 1 and three-time US Open champion Kim Clijsters in the second round and followed that with a 6-4, 6-7, 6-2 win over ninth seed Li Na of China. Her reward is to face defending champion and seventh seed Samantha Stosur of Australia for a place in the quarter final. Robson, who has been on a high since winning silver at the London Olympics 2012, is the first British woman to reach the fourth round of a Grand Slam tournament in 14 years.

Day 5 Round-up

Men's Singles: Defending champion and world number two Novak Djokovic remains on course to retain his title after thumping Rogerio Dutra Silva of Brazil 6-2, 6-1, 6-2 to reach the third round. Hometown hero and 2003 champion Andy Roddick, who revealed this US Open would be his swansong, is also through, after breezing past teenage Australian star Bernard Tomic 6-3, 6-4, 6-0.

Also in the third round is seventh seed and 2009 champion Juan Martin del Potro of Argentina, who beat local boy Ryan Harrison 6-2, 6-2, 6-2. Fourth seed David Ferrer of Spain was equally untroubled in his game against Dutchman Igor Sijsling, winning 6-2, 6-3, 7-6. Ninth seed and crowd favourite John Isner is also through after the 27-year-old defeated Jari Nieminen of Finland 6-3, 6-7, 6-4, 6-3. Eighth seed Jano Tipsarevic of Serbia, 13th seed Richard Gasquet of France, 18th seed Stanislas Wawrinka of Switzerland, 19th seed Philipp Kohlschreiber of Germany and 2001 champion Lleyton Hewitt of Australia have also reached the third round.

Women's Singles: World number one Victoria Azarenka of Belarus blew away Zheng Jie of China 6-0, 6-1 to move to the fourth round, while third seed and 2006 champion Maria Sharapova made quick work of local girl Mallory Burdette 6-1, 6-1. Fifth seeded Czech Petra Kvitova defeated Pauline Parmentier of France 6-4, 6-4, while defending champion and seventh seed Samantha Stosur of Australia saw off Uzbekistanian-born American Varvara Lepchenko 7-6, 6-2.

Day Six Matches (all times BST):

Andy Murray
Murray will play Feliciano Lopez of Spain

Men's Singles Third Round: Olympic champion and third seed Murray faces Feliciano Lopez of Spain on the Armstrong court but not before 6pm. World number one Federer will take on Spaniard Fernando Verdasco at the Arthur Ashe Stadium at 9pm, while on Grandstand court, American James Blake plays 15th seed Milos Raonic of Canada at the same time. Meanwhile, Mardy Fish of USA, the 23rd seed, will take on 16th seed Gilles Simon of France at 2am (2 Sept).

Women's Singles Third Round: World number two Agnieszka Radwanska of Poland faces veteran Jelena Jankovic of Serbia at Arthur Ashe Stadium at 4pm. Meanwhile, London 2012 gold medallist and fourth seed Serena Williams takes on Ekaterina Makarova of Russia at the same venue but not before 6pm. Finally, 12th seed Ana Ivanovic of Serbia plays local teenager Sloane Stephens at 12midnight.

Where to Watch Live

You can follow all the action live, from 4pm on Sky Sports 2 and Sky Sports HD 2. You can also catch all the scores and updates, in real time, on the tournament's official website.