A look at the highlights on the seventh day of the US Open 2012 as the top contenders booked their places in the pre-quarters and quarters. (AFP Photos)
Novak Djokovic brushed aside his challenger as he thrashed Julien Benneteau 6-3, 6-2, 6-2 in their third round encounter.
Andy Roddick was given a run for his money by Fabio Fognini before he triumphed to take the match in the fourth set winning 7-5, 7-6, 4-6, 6-4.
David Ferrer was tested early by Leyton Hewitt in the first set but rallied back to win it in a tie-breaker and ultimately came up trumps 7-6, 4-6, 6-3, 6-0.
Juan Martin del Potro was pushed by Leonardo Mayer in the third set of their match but prevailed over his opponent to win 6-3, 7-5, 7-6.
Stanislas Wawrinka dispatched Alexandr Dolgopolov in straight sets to earn a place in the last sixteen winning 6-4, 6-4, 6-2.
Maria Sharapova did face some stiff resistance from Nadia Petrova in the second set but went on to emerge victorious taking the match 6-1, 4-6, 6-4 to enter the last eight.
Victoria Azarenka faced no such trouble as she overcame Anna Tatishvili 6-2, 6-2 to earn her quarter-final berth.
Samantha Stosur killed the giant killer as she ended Laura Robson's run in the tournament taking both the sets 6-4.