Seamer Atkinson Compounds England's Fitness Concerns.
'Significant concern' for England after Atkinson is forced off suffering a hamstring problem.
The pace bowler increased the injury concerns plaguing England after leaving the playing area on the second morning in the Melbourne Test versus the Australians.
The pace bowler experienced discomfort in his hamstring after the final ball of the fourth over at the MCG.
The touring camp reported Atkinson had experienced "tightness" and required 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.
England have been without key quicks one seamer due to knee trouble and another paceman with an abdominal strain during this series.
A replacement bowler was called up as cover for Wood.
Atkinson struggled early in the series, taking just a handful of scalps.
He was left out from the previous Test, then recalled for the Melbourne Test in the playing XI.
Surrey's Atkinson showed better form in Melbourne, bagging two scalps during the host's first knock, and scoring 28 runs as a batsman as one of just three England players who passed ten runs.
Following a brief spell at the end of day one, he returned for the second day's play and removed Scott Boland Scott Boland caught behind.
However, towards the conclusion of his spell, he bowled a slower ball to Travis Head and suddenly grabbed at his leg.
Gus Atkinson returned to the side for the Boxing Day Test after being left out of the third.
