Paceman Atkinson Compounds England's Injury Worries.
'Significant concern' for England as Atkinson is forced off suffering a hamstring problem.
The pace bowler further complicated the fitness woes of the England squad after leaving the ground during Saturday's play in the Melbourne Test against Australia.
The right-arm seamer pulled up with his left hamstring post-delivery in his spell on Saturday.
The England team indicated the 27-year-old had experienced "tightness" and was to take time off the field in order to be assessed "in the coming hours".
The series decider in this Ashes battle beginning on 4 January gets underway on Sunday, 4 January.
The English side has previously lost key quicks one seamer to a knee injury and Jofra Archer to a side strain on this Ashes tour.
Matthew Fisher was added to the party as cover for Wood.
Atkinson struggled during the first two matches, claiming a mere a handful of scalps.
He was omitted from the previous Test, before being recalled for the fourth Test to fill the void.
The county bowler showed better form in Melbourne, claiming a couple of wickets in Australia's first innings, then making 28 while batting being one of only three teammates who passed ten runs.
Following a brief spell at the end of day one, he returned for the second day's play and removed Scott Boland taken by the wicketkeeper.
However, on the final ball of his spell, he sent down a change of pace to the batsman and promptly felt his left hamstring.
Gus Atkinson was brought back for the Melbourne match following his omission of the third.
