Paceman Atkinson Compounds the English team's Fitness Concerns.
'Significant concern' for the touring side as Atkinson is forced off suffering a hamstring problem.
The English seamer further complicated England's injury problems upon exiting the ground during Saturday's play in the Melbourne Test against Australia.
Atkinson experienced discomfort in his left leg immediately following a delivery that he bowled on Saturday.
The England team stated Atkinson reported "discomfort" and would spend time on the sidelines for further assessment "during the day".
The series decider of the series beginning on 4 January begins this coming Sunday.
England have been without key quicks one seamer with a knee problem and another paceman to a side strain on this Ashes tour.
Matthew Fisher was brought into the squad as cover for Wood.
The seamer had a tough time during the first two matches, taking just a handful of scalps.
He was omitted from the previous Test, then recalled for the Melbourne Test in the playing XI.
Atkinson improved at the MCG, bagging two scalps during the host's first knock, then making 28 as a batsman as one of just three teammates who passed ten runs.
Following a brief spell in Australia's second innings, he returned on Saturday morning and had nightwatchman Scott Boland caught behind.
Unfortunately, on the final ball of his spell, he delivered a variation to Travis Head and suddenly grabbed his left hamstring.
The English bowler returned to the side for the Boxing Day Test after being left out the previous Test.