The team skipper Ben Stokes is said to be "worn out" but still "physically able" to deliver overs, according to team coach Jeetan Patel, even though he abstained from bowling on the third day of a pivotal Ashes Test.
Stokes utilized a quintet of alternative bowlers as Australia progressed to 271-4 in their follow-on, establishing a substantial advantage of 356 runs at the venue.
The versatile all-rounder had previously spent over five hours at the wicket across two days to score 83 runs in England's first innings.
Throughout his extended 198-ball innings, the veteran cricketer was hit on the helmet by Mitchell Starc and experienced bouts of cramp. He also required time off the field on Friday after hitting his head on the ground while attempting a stop.
"He might be a little fatigued and just require some time to himself right now," commented Patel.
"Based on my knowledge, he's quite ready to bowl. I think he's just pretty knackered and he's expended a great deal out of himself to get through this point in the game."
Given his chequered injury past – Stokes has not been fully available in any of England's last four series – any indication the Durham man might be carrying a problem draws significant attention.
Always keen to be in the heat of battle, Stokes' absence from the attack on Friday was puzzling given it was England's last chance to stay in the Ashes series.
At trailing 2-0 and requiring a victory in Adelaide to keep their aspirations of winning back the Ashes alive, England had conceded a first-innings lead of 85 runs.
"My understanding is he goes at 100%," remarked Patel. "If he thinks he can't do it at 100%, I don't think he's going to do it. That's likely where he's at."
The visiting side could have remained in the contest by bowling out Australia for approximately 240 in their second innings and had faint chances at 53-2 and 149-4, only for the home team to accelerate away through Travis Head's not out 142.
Even though England delivered 66 overs, Stokes chose not to bowl.
"He abstained from bowling but that's probably a different discussion with him," said ex-New Zealand player Patel.
"I'm not entirely sure. We all know he doesn't do anything at 80%. Maybe he thought he was a risk, so he didn't bowl."
The last time Stokes curtailed his own bowling was on the last day of the drawn fourth Test against India at Old Trafford in July.
He subsequently was absent for the fifth Test at The Oval with a shoulder problem.
Stokes has a history of driving himself past breaking point, and it was put to Patel that the captain felt he might have endangered himself if he pushed himself any further in Adelaide.
England stand on the edge of yet another defeat in Australia, once again probably facing defeat inside the initial three matches of the series.
If the visitors' defeat is sealed on day four, it would mean the destination of the Ashes has been determined in just ten days – the first and second Tests were over in short periods respectively.
Not since 1921, when Australia needed only eight playing days to win in England, has the victor of an Ashes series been determined so swiftly.
If a first goal is to prolong the game into a fifth day, England will also have to achieve the greatest run-chase at the Adelaide Oval to keep the series ongoing.
"I remain convinced there's an opportunity for us," said Patel. "It will be difficult, we're going to need something extraordinary. I think it's high time we saw something magical from us."
"After three matches, we've landed some blows but absorbed many. It's time, now we're with our backs to the wall, to throw some haymakers."
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