Paceman Atkinson Adds to England's Fitness Worries.
'Major setback' for England after Atkinson goes off due to a hamstring issue.
The pace bowler further complicated the fitness woes of the England squad upon exiting the ground during Saturday's play in the Melbourne Test in the Ashes series.
The right-arm seamer pulled up with his left hamstring post-delivery in his spell at the MCG.
The touring camp indicated the 27-year-old had experienced "tightness" and required time on the sidelines for further assessment "over the next few hours".
The final Test of the series at the SCG gets underway at the end of the week.
The English side has been without strike bowlers one seamer with a knee problem and another paceman because of a side injury on the current trip.
Matthew Fisher was added to the party to provide backup.
Atkinson struggled in the opening two Tests, taking just three wickets.
He was omitted of the third Test, only to be brought back for the fourth Test as Archer's replacement.
The county bowler improved at the MCG, claiming a couple of wickets in Australia's first innings, then making 28 while batting among just a trio of teammates to reach double figures.
Post a single over in Australia's second innings, he came back on Saturday morning and had nightwatchman taken by the wicketkeeper.
However, at the end of the fifth over, he sent down a variation to the batsman and promptly felt at his leg.
Atkinson returned to the side for the fourth Ashes Test following his omission the previous Test.