Tearaway quick Mitchell Johnson has accused England of deliberately backing away from fast bowlers as a tactic to unsettle Australia’s pacemen.

It is not uncommon for batsmen to walk away from a delivery if members of the crowd appear in their line of vision – but Johnson says the regularity with which it has happened during the Ashes indicates England are doing it for other reasons.

And the fiery left-armer says he expects Andy Flower’s men to continue to employ it in the fifth and final Test at the SCG, starting on Friday.

“That’s how they play the game and have always played the game since I’ve been playing,” he said on Wednesday.

“It’s always happened so I don’t think they’ll change.

“…It definitely is frustrating when it happens all the time but that’s part of the game, it’s part of their tactics.”

The issue came to a head during the Boxing Day Test when controversial Englishman Kevin Pietersen walked away during Johnson’s run-up – causing the series leading wicket-taker to react angrily.

Johnson pegged the ball in Pietersen’s direction – an action he says he regrets – and shared words soon after.

But Johnson says he won’t be playing nice if England try it again in Sydney.

“The only thing I regret is throwing the ball,” he said.

“I think that was probably a little bit inappropriate but the rest of it was fine.

“I just let (Pietersen) know that he needed to stop doing it.

“The sight screens are big enough, he should be watching the game.

“I won’t back down if it happens again.”

But if it is a tactic – it’s certainly not working.

Johnson, who has taken 31 wickets at 14.32 this series, said he was spurred on by Pietersen’s hasty retreat in Melbourne – where he claimed 3-25 in the second innings.

“It probably spurred me on to really get back in the game,” he said.

“Not long after that got Bairstow out so it was probably a tactic that didn’t work on his behalf that time.”