Seamer Atkinson Adds to England's Fitness Worries.
'Serious blow' for the touring side as Atkinson is forced off with a hamstring injury.
The English seamer further complicated the fitness woes of the England squad when he left the playing area on the second morning in the Melbourne Test in the Ashes series.
The pace bowler felt a problem in his hamstring after the final ball in his spell at the MCG.
The touring camp stated Atkinson felt some "soreness" and required time on the sidelines to undergo evaluation "in the coming hours".
The series decider of the tour at the SCG starts at the end of the week.
England have previously lost fast bowlers Mark Wood due to knee trouble and another paceman to a side strain on the current trip.
Matthew Fisher was brought into the squad as cover for Wood.
Atkinson struggled in the opening two Tests, managing only a handful of scalps.
He was dropped of the third Test, only to be brought back for the Melbourne Test as Archer's replacement.
Atkinson performed better in the fourth Test, taking two wickets with the ball, and scoring 28 runs as a batsman among just a trio of teammates to reach double figures.
After bowling one over in Australia's second innings, he came back on Saturday morning and removed Scott Boland edging to the keeper.
Unfortunately, on the final ball of his spell, he delivered a slower ball to Travis Head and suddenly grabbed for his hamstring.
Gus Atkinson was brought back for the Melbourne match having missed of the third.
