Fast bowler Atkinson Compounds England's Fitness Concerns.
'Serious blow' for England as Atkinson leaves the field with a hamstring injury.
The pace bowler increased England's injury problems when he left the playing area during Saturday's play in the Melbourne Test against Australia.
The pace bowler experienced discomfort in his left leg post-delivery in his spell at the MCG.
Team management indicated Atkinson reported "discomfort" and would spend time off the field for further assessment "in the coming hours".
The concluding match in this Ashes battle at the SCG gets underway at the end of the week.
England have been without strike bowlers one seamer with a knee problem and another paceman to a side strain during this series.
A replacement bowler was brought into the squad as cover for Wood.
His form was underwhelming in the opening two Tests, managing only three wickets.
He was left out from the previous Test, only to be brought back for the Melbourne Test as Archer's replacement.
Atkinson improved at the MCG, bagging two scalps with the ball, and scoring 28 runs as a batsman among just a trio of England players to get into double digits.
After bowling one over late on the first day, he came back on Saturday morning and dismissed the nightwatchman taken by the wicketkeeper.
Yet, on the final ball of that over, he sent down a variation to Travis Head and promptly felt his left hamstring.
The English bowler was brought back for the Melbourne match having missed of the third.
