It started off, as these things often do, as something fairly innocuous. With England 85-0, Michael Carberry dragged a wide ball on to his stumps,before a controversial decision saw Joe Root on his way, too.
Quite suddenly, as if a switch had been flicked, the whole complexion of the day shifted. With the innings having started with ease and a handful of luck, the pressure of the occasion suddenly felt immense.
In a pulsating evening session, England lost both Kevin Pietersen and Alastair Cook after an hour and a half of bitter struggle before Ian Bell and Ben Stokes battled painstakingly to the close. The final session stats of 89-2 in 34 overs don't tell the whole story of a session of pressure and stagnation that swung the match disproportionately back in Australia’s favour.
Closing on 180-4, England trail by 205 runs and, considering the form of their lower order of late, face an enormous struggle to fight back in this Test. The pitch also appears to be deteriorating and batting will only get harder from here onwards, which reaffirms the importance of England’s final six wickets in this innings.