Wimbledon 2009: day four in pictures

The Umpire's chair and Barley Water, two things synonymous with Wimbledon ... Photograph: Tom Jenkins

... as are Strawberries and Pimm's, which make an appearance on some ladies' hats on Court One Photograph: Tom Jenkins

Former Test cricketer Adam Gilchrist, is at Centre Court to cheer on his friend Lleyton Hewitt as the Aussie takes on Juan Martín Del Potro ... Photograph: Tom Jenkins

... as are a group of Aussie fans called the Fanatics Photograph: Tom Jenkins

The 2002 champion starts strongly ... Photograph: Tom Jenkins

... much to the disappointment of Juan Martín Del Potro Photograph: Tom Jenkins

Hewitt celebrates taking the first set 6-3 Photograph: Tom Jenkins

Hewitt slides across the grass to make a return Photograph: Tom Jenkins/Tom Jenkins

All the Aussie support drove the world No56 Lleyton Hewitt to a 6–3, 7–5, 7–5 victory against the fifth seed Juan Martín Del Potro, which he celebrated in the style of Björn Borg Photograph: Tom Jenkins

Jürgen Melzer changes his shirt during his 7-6, 6-3, 7-6 victory against Benjamin Becker Photograph: Tom Jenkins

No 1 seed Dinara Safina is poised as she waits for the ball to fall into range as she serves during her 6-3, 7-5 victory over Rossana De Los Rios Photograph: Tom Jenkins

The strapping on Venus Williams's knee didn't impede her as she cruised to a comfortable 6–3, 6–2 victory over Kateryna Bondarenko Photograph: Tom Jenkins

Fans on Centre Court cheer for the No3 seed Photograph: Tom Jenkins

Murray serves in the sunshine Photograph: Tom Jenkins

Andy Murray at full stretch to make a forehand return ... Photograph: Tom Jenkins

... as is his opponent Ernest Gulbis Photograph: Tom Jenkins

Sir Trevor McDonald is engrossed watching Murray on Centre Court Photograph: Tom Jenkins

Murray strides towards the ball ready to dispatch a forehand pass Photograph: Tom Jenkins

This time he has to deal with a high ball from Gulbis Photograph: Tom Jenkins

No guesses for who this fan is cheering for on Centre Court ... Photograph: Tom Jenkins

... or who this fan has taken a photo of Photograph: Tom Jenkins

As the sun sets in SW19 Murray is forcing his way into the third round Photograph: Tom Jenkins

With a look of concentration on his face, Murray is ready to smash a serve over the net Photograph: Tom Jenkins

From out of the shadows, Andy Murray fires a powerful two-handed backhand return. It's part of an arsenal that was too much for Gulbis, as the No3 seed eased to a comfortable 6-2, 7-5, 6-3 victory over the unseeded Latvian Photograph: Tom Jenkins