England are bracing for a crucial Sunday night under lights as they fight to keep alive any realistic chance of regaining the Ashes.
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Australia will resume on Sunday knowing they hold all the cards, at 1-45 in their second innings and with a lead of 282.
The tourists know all too well that Australia will try to bat until at least the second break on day four, setting England the task of surviving four sessions to save the match.
The toughest part of that is likely to come in Sunday's night session against the new ball as well as potentially a second new ball under lights on day five if required.
"We have got our work cut out with the bat," England No.3 Dawid Malan conceded.
"The first thing it to try and put them under pressure with the ball.
"If they can come out and make some inroads early that will give us a little bit of momentum early for the evening session.
"But that last session is key.
"If we can get through that session with maybe one wicket down then we're in every position to bat out the day (five)."
A loss in Adelaide would be disastrous for Joe Root's men, given they would then need to win all of the last three Tests to regain the Ashes.
Root and Malan have at least shown it is possible to offer some resistance, given they have put on 300 runs in their last two partnerships.
England's other 18 wickets in that time have however only added just 233 runs between them, with the rest of England's batsmen battling for form and struggling to adapt to Australian wickets.
Nathan Lyon's spin is also likely to be crucial on the final day for Australia.
Both he and Joe Root have been able to extract some turn and bite out of the Adelaide wicket, after England went in without a frontline spinner.
Lyon is now just two scalps away from joining Shane Warne for the leading wicket-taker in all Tests at the Adelaide Oval, with 54 at 26.51.
It comes after he and Mitchell Starc stood up as the senior bowlers in England's first innings, taking seven wickets between them with Pat Cummins and Josh Hazlewood missing.
"In terms of their make up, Nath is obviously a big part of our bowling attack," Starc said.
"For us quicks to bowl in partnership with him and knowing that he was going to do a fantastic job was pretty key.
"We saw with Joe in the first innings and again (late on day three) there is a bit of purchase there for a spinner and Nathan can take full advantage of that."
Australian Associated Press