Fast bowler Atkinson Compounds the English team's Fitness Worries.
'Major setback' for the touring side as Atkinson leaves the field suffering a hamstring problem.
The English seamer further complicated England's injury problems after leaving the field on the second morning of the fourth Ashes Test in the Ashes series.
The right-arm seamer experienced discomfort in his left leg post-delivery in his spell during the morning session.
Team management indicated Atkinson felt some "soreness" and was to take time on the sidelines in order to be assessed "during the day".
The final Test of the tour beginning on 4 January starts at the end of the week.
The visitors have already lost fast bowlers Mark Wood to a knee injury and Jofra Archer because of a side injury on this Ashes tour.
Matthew Fisher was brought into the squad as injury reinforcement.
His form was underwhelming in the opening two Tests, taking just three wickets.
He was omitted for the Adelaide match, before being recalled for the Boxing Day match as Archer's replacement.
Surrey's Atkinson improved at the MCG, claiming a couple of wickets in Australia's first innings, before adding 28 as a batsman among just a trio of English batsmen to reach double figures.
After bowling one over at the end of day one, he resumed on Saturday morning and removed Scott Boland Scott Boland caught behind.
However, towards the conclusion of the fifth over, he bowled a slower ball to the batsman and immediately felt his left hamstring.
Gus Atkinson was recalled for the fourth Ashes Test following his omission the previous Test.
