Fast bowler Atkinson Compounds the English team's Fitness Worries.
'Significant concern' for the English camp after Atkinson is forced off due to a hamstring issue.
The pace bowler added to the injury concerns plaguing England after leaving the ground early on day two of the fourth Ashes Test against Australia.
The right-arm seamer pulled up with his left hamstring after the final ball in his spell at the MCG.
The England team indicated the 27-year-old felt some "soreness" and would spend time on the sidelines in order to be assessed "during the day".
The series decider of the series at the SCG gets underway this coming Sunday.
The English side has previously lost strike bowlers Mark Wood due to knee trouble and another paceman to a side strain on the current trip.
Matthew Fisher was brought into the squad to provide backup.
The seamer had a tough time early in the series, claiming a mere three wickets.
He was left out for the Adelaide match, then recalled for the fourth Test in the playing XI.
Surrey's Atkinson improved at the MCG, claiming a couple of wickets in Australia's first innings, before adding 28 with the bat being one of only three teammates to reach double figures.
After bowling one over at the end of day one, he resumed on Saturday morning and removed Scott Boland taken by the wicketkeeper.
Unfortunately, towards the conclusion of that over, he sent down a slower ball to the batsman and suddenly grabbed his left hamstring.
The English bowler was recalled for the Boxing Day Test after being left out the previous Test.
