Kevin Pietersen tried his best to turn over a new leaf, but his nemesis Peter Siddle tempted him back to his old ways.

Pietersen had come under fire during the opening two Tests of the Ashes after getting out to a series of rash shots.

His second innings knock of 53 in Adelaide was more disciplined, and he took the same mantra into the third Ashes Test at the WACA, where he faced 58 balls and spent 95 minutes at the crease as he crawled to 19.

During that time, he became the fifth Englishman to reach 8000 Test runs.

But under Perth’s searing heat, Pietersen couldn’t hold his composure any longer, producing a lazy swat at a rising Siddle delivery.

Mitchell Johnson took a superb stumbling catch at mid-on to send Pietersen packing.

It was the 10th time in Test cricket Pietersen had fallen victim to vegan warrior Peter Siddle.

But more importantly, Pietersen’s dismissal left England precariously placed at 4-146 in reply to Australia’s 385.

With England trailing 2-0 in the series, they desperately needed Pietersen to fire in Perth.

He still has one more chance to do that, but he’ll have to overcome his rashness and a hungry Siddle.