Seamer Atkinson Compounds England's Injury Worries.
'Significant concern' for England as Atkinson goes off suffering a hamstring problem.
The pace bowler added to England's injury problems when he left the field during Saturday's play in the Melbourne Test in the Ashes series.
The right-arm seamer experienced discomfort in his left hamstring after the final ball that he bowled at the MCG.
Team management indicated the 27-year-old reported "discomfort" and required time on the sidelines for further assessment "during the day".
The concluding match in this Ashes battle in Sydney begins on Sunday, 4 January.
The English side has previously lost key quicks one seamer due to knee trouble and another paceman with an abdominal strain during this series.
A replacement bowler was added to the party as cover for Wood.
His form was underwhelming during the first two matches, managing only three wickets.
He was left out of the third Test, before being recalled for the fourth Test as Archer's replacement.
The county bowler improved at the MCG, claiming a couple of wickets during the host's first knock, before adding 28 with the bat being one of only three teammates who passed ten runs.
Post a single over in Australia's second innings, he returned the next day and had nightwatchman taken by the wicketkeeper.
Yet, on the final ball of that over, he delivered a slower ball to Travis Head and promptly felt at his leg.
Gus Atkinson returned to the side for the Melbourne match having missed the previous Test.
