Paceman Atkinson Adds to England's Fitness Worries.
'Major setback' for the English camp as Atkinson goes off suffering a hamstring problem.
The pace bowler increased 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 hamstring immediately following a delivery that he bowled at the MCG.
Team management stated Atkinson felt some "soreness" and required time away from the action in order to be assessed "in the coming hours".
The series decider in this Ashes battle at the SCG gets underway on Sunday, 4 January.
The visitors have previously lost fast bowlers Mark Wood to a knee injury and another paceman with an abdominal strain on this Ashes tour.
A replacement bowler was brought into the squad to provide backup.
Atkinson struggled during the first two matches, claiming a mere a handful of scalps.
He was left out from the previous Test, before being recalled for the fourth Test as Archer's replacement.
Atkinson showed better form in Melbourne, taking two wickets with the ball, and scoring 28 runs with the bat as one of just three English batsmen to reach double figures.
After bowling one over late on the first day, he came back for the second day's play and removed Scott Boland taken by the wicketkeeper.
Yet, at the end of his spell, he bowled a variation to Travis Head and suddenly grabbed at his leg.
Gus Atkinson was brought back for the fourth Ashes Test having missed of the third.