Tennis: day four of the Australian Open

Prince William was among the spectators at the Rod Laver Arena to see Roger Federer play Photograph: Tim Wimborne/Reuters Photograph: Tim Wimborne/guardian.co.uk The Swiss star faced the towering Romanian Victor Hanescu - a 6ft 6in clay-court specialist - but was seldom troubled throughout the match Photograph: EMPICS Sport Photograph: guardian.co.uk In fact, Federer never had his serve broken as he won 6-2, 6-3, 6-2 Photograph: Ryan Pierse/Getty Images Photograph: Ryan Pierse/guardian.co.uk Federer said afterwards: "It's a pleasure playing in front of Prince William. From what I've heard, I think he met Serena Williams and myself, and came to watch my match." Photograph: Paul Crock/AFP/Getty Images Photograph: Paul Crock/guardian.co.uk Novak Djokovic of Serbia was given a sterner test by Marco Chiudinelli of Switzerland Photograph: Mast Irham/EPA Photograph: Mast Irham/guardian.co.uk Chiudinelli won the first set 6-3 before Djokovic came back to win the next three sets 6-1, 6-1, 6-3 Photograph: Jason O'Brien/Action Images Photograph: Jason O'Brien/guardian.co.uk Djokovic signs autographs after an uninspiring victory Photograph: David Gray/Reuters Photograph: David Gray/guardian.co.uk Home favourite Lleyton Hewitt beat Donald Young 7-6, 6-4, 6-1. He'll now face Marcos Baghdatis in the next round, with whom he fought an unforgettable five-set match in 2008 which carried on past 4am Photograph: Quinn Rooney/Getty Images Photograph: Quinn Rooney/guardian.co.uk Nikolay Davydenko looks pensive against Illya Marchenko of Ukraine, although this expression belied the ease of his win. He triumphed 6-3, 6-3, 6-0 Photograph: Ryan Pierse/Getty Images Photograph: Ryan Pierse/guardian.co.uk Britain's Laura Robson, on her 16th birthday, partners up with Sally Peers of Australia in their first round doubles match against Jill Craybas and Abigail Spears of the USA. Robson celebrates with a 6-3, 7-5 win Photograph: Quinn Rooney/Getty Images Photograph: Quinn Rooney/guardian.co.uk Argentina's Gisela Dulko reacts during her match against Ana Ivanovic Photograph: Vivek Prakash/Reuters Photograph: Vivek Prakash/guardian.co.uk Ivanovic wins the first set but concedes the second. She looks unnerved as this match goes into a deciding set Photograph: Vivek Prakash/Reuters Photograph: Vivek Prakash/guardian.co.uk And the Serbian duly crashes out 6-7, 7-5, 6-4 Photograph: Vivek Prakash/Reuters Photograph: Vivek Prakash/guardian.co.uk A line judge watches intently as Sybille Bammer of Austria plays Venus Williams of the United States Photograph: Franck Robichon/EPA Photograph: Franck Robichon/guardian.co.uk Williams won the contest 6-2, 7-5 Photograph: Jason O'Brien/Action Images Photograph: Jason O'Brien/guardian.co.uk Jo-Wilfried Tsonga of France hits a return against Taylor Dent of the United States on the way to a 6-4, 6-3, 6-3 win Photograph: Daniel Munoz/Reuters Photograph: Daniel Munoz/guardian.co.uk Mikhail Youzhny of Russia reacts after with a curious salute after defeating the Czech Republic's Jan Hajek 6-2, 6-1, 6-1 Photograph: Tim Wimborne/Reuters Photograph: Tim Wimborne/guardian.co.uk