Seamer Atkinson Compounds England's Fitness Problems.
'Major setback' for the English camp as Atkinson is forced off due to a hamstring issue.
Gus Atkinson further complicated the fitness woes of the England squad after leaving the field early on day two of the fourth Ashes Test in the Ashes series.
Atkinson experienced discomfort in his left leg post-delivery in his spell on Saturday.
The England team indicated the 27-year-old reported "discomfort" and was to take time on the sidelines for further assessment "over the next few hours".
The concluding match in this Ashes battle at the SCG starts this coming Sunday.
The visitors have already lost strike bowlers Mark Wood due to knee trouble and another paceman to a side strain during this series.
Matthew Fisher was called up as cover for Wood.
The seamer had a tough time in the opening two Tests, taking just three wickets.
He was omitted from the previous Test, only to be brought back for the Melbourne Test as Archer's replacement.
Surrey's Atkinson showed better form in Melbourne, claiming a couple of wickets during the host's first knock, before adding 28 while batting being one of only three England players to reach double figures.
Post a single over in Australia's second innings, he returned for the second day's play and removed Scott Boland taken by the wicketkeeper.
Yet, on the final ball of his spell, he delivered a slower ball to Travis Head and promptly felt for his hamstring.
Atkinson was recalled for the Melbourne match following his omission of the third.
