Seamer Atkinson Compounds the English team's Injury Problems.
'Major setback' for the touring side after Atkinson leaves the field due to a hamstring issue.
The pace bowler further complicated the injury concerns plaguing England when he left the field during Saturday's play in the Melbourne Test against Australia.
The pace bowler pulled up with his left leg immediately following a delivery that he bowled during the morning session.
The touring camp stated the 27-year-old had experienced "tightness" and required time on the sidelines to undergo evaluation "during the day".
The final Test in this Ashes battle in Sydney gets underway on Sunday, 4 January.
England have already lost key quicks Mark Wood to a knee injury and Jofra Archer to a side strain on this Ashes tour.
Matthew Fisher was added to the party as injury reinforcement.
Atkinson struggled in the opening two Tests, taking just three wickets.
He was omitted for the Adelaide match, before being recalled for the Boxing Day match in the playing XI.
Surrey's Atkinson performed better in the fourth Test, claiming a couple of wickets with the ball, then making 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 came back on Saturday morning and dismissed the nightwatchman Scott Boland caught behind.
However, towards the conclusion of his spell, he delivered a change of pace to Travis Head and promptly felt at his leg.
Gus Atkinson was recalled for the fourth Ashes Test after being left out the previous Test.
