Mitchell Johnson made the most of the second new ball, taking two late wickets in front of a world record crowd Thursday to leave England on a precarious 226-6 at stumps on the opening day of the fourth Ashes Test against Australia.
Kevin Pietersen had two big reprieves to bring up a half century and anchor a dour England batting performance before Johnson (2-59 ) struck shortly before the close of play to remove Ben Stokes and Jonny Bairstow.
Ryan Harris (2-32) claimed the important wicket of Ian Bell earlier in the third session.
A crowd of 91,092 - a record for a single day of test cricket - attended the opening day, surpassing the 90,800 set at the MCG in 1961.
Pietersen resumes Friday on 67 from 152 balls with Tim Bresnan on 1.