Ashes 2013-14: Australia v England, second Test, day four – in pictures

So, with the weather looking a little iffy, the Australians have declared at the start of the day and put England back in to bat. They need to score 531 runs or bat for two days solid. What, then, is the worst thing an England captain could do in the second over? This perhaps … Photograph: Robert Cianflone/Getty Images

Cook's ridiculous hook shot goes to long leg, where Ryan Harris takes the catch. Mitchell Johnson was, unsurprisingly, the man who delivered the killer ball. England are 1-1 Photograph: Gareth Copley/Getty Images

Then Michael Carberry follows suit; same daft shot, same painful result. This time Peter Siddle was the bowler and Nathan Lyon took the catch. 20-2 Photograph: WILLIAM WEST/AFP/Getty Images

These 90mph deliveries from Johnson are giving the photographers a bit of artistic licence. You get a sense, here, of the man at full tilt Photograph: Morne de Klerk/Getty Images

Kevin Pietersen (pictured) and Joe Root offer some resilience as both men chalk up half centuries. Pietersen smashes three sixes to make it a record-breaking Ashes – now 20 in total. But the England batsman is gone shortly thereafter when he drags on to his stumps from Siddle's delivery Photograph: Quinn Rooney/Getty Images

Ian Bell falls cheaply as Johnson takes a catch at mid-on before tea. England are 143-4 Photograph: SAEED KHAN/AFP/Getty Images

When Root is caught by Brad Haddin off Lyon's delivery for 87, the reaper is practically at England's door. They're 171-5 and may not even last to the end of day four Photograph: Ryan Pierse/Getty Images

Ben Stokes becomes Australia's sixth victim of the day when he's caught by Michael Clarke off Harris for 28. Desperate times for Cook and his men. But England do at least hobble to the end of the day without total collapse – so they'll have to come back for the final onslaught. Close of play: 247-6 Photograph: Jason O'Brien/Action Images