The team skipper Ben Stokes is reportedly "exhausted" but still "physically able" to deliver overs, per assistant coach Jeetan Patel, despite he did not bowl on the third day of a critical Ashes Test.
Stokes deployed a quintet of alternative bowlers as the Australian side moved to 271-4 in their follow-on, establishing a substantial advantage of 356 runs at the venue.
The dynamic player had earlier spent over five hours at the crease over two days to compile 83 runs in England's first innings.
During his marathon 198-ball stay, the veteran cricketer was hit on the helmet by a fast bowler and suffered bouts of cramp. He also required time off the field on the previous day after hitting his head on the ground while attempting a stop.
"He could be a bit tired and just need a bit of time to himself right now," commented Patel.
"Based on my knowledge, he's pretty fit to bowl. I think he's just pretty knackered and he's expended a great deal out of himself to reach this point in the game."
Given his complicated injury history – Stokes has not played a full part in any of England's last four series – any indication the star all-rounder might be carrying a problem attracts considerable scrutiny.
Eager to be in the thick of the action, Stokes' absence from the attack on Friday was puzzling given it was England's last chance to remain alive in the Ashes series.
At 2-0 down and requiring a victory in Adelaide to keep their aspirations of winning back the Ashes alive, England had conceded a first-innings deficit of 85 runs.
"All I know is he goes at 100%," said 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 knock and had faint chances at certain scorelines, only for the home team to accelerate away through Travis Head's not out 142.
Even though England bowled 66 overs, Stokes chose not to bowl.
"He abstained from bowling but that's perhaps a different discussion with him," noted 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 most recent occasion Stokes limited his 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 injury.
Stokes has a history of pushing his body to its absolute limit, and it was suggested to Patel that the captain felt he might have risked injury if he exerted himself any further in Adelaide.
England are on the verge of yet another defeat in Australia, once again probably facing defeat inside the first three Tests of the series.
If the tourists' loss is sealed on Saturday's fourth day, it would mean the destination of the Ashes has been decided in just ten days – the opening two matches were over in short periods respectively.
Not since 1921, when Australia needed only eight playing days to win in England, has the winner of an Ashes series been decided this quickly.
If a primary objective is to extend this match into a final day, England will also have to achieve the greatest run-chase at the Adelaide Oval to keep the series alive.
"I remain convinced there's an opportunity for us," said Patel. "It will be difficult, we're going to need something magical. I think it's about time we saw something magical from us."
"After three matches, we've landed some blows but absorbed many. It's about time, now we're with our backs to the wall, to throw some haymakers."
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