It's agony for Serena Williams as she loses the first set against sister Venus on a tie-break

Venus' greater accuracy from the baseline proves the difference as she powers through in straight sets

Venus goes through to a possible quarter-final against Kim Clijsters but her celebrations are understandably muted

Lleyton Hewitt puts his support camp, including sister Jaslyn (left) and pregnant wife Bec, through the mill in his match against Taylor Dent

Big-serving American Dent has the crowd on his side as he moves into a two sets to one lead

But Hewitt battles back and clinches an epic victory on his fourth match point

Indian teenager Sania Mirza uses her booming forehand to good effect against top seed Maria Sharapova

Despite the scoreline, Sharapova has to dig deep to come through 6-2 6-1 and reach the last eight

Slovakia's Dominik Hrbaty sports an unusual shirt in his fourth-round win - and he has to ask a ball boy to put suncream on his back