Fast bowler Atkinson Adds to England's Injury Worries.
'Serious blow' for the touring side after Atkinson goes off due to a hamstring issue.
Gus Atkinson further complicated the injury concerns plaguing England upon exiting the field on the second morning of the Boxing Day Test versus the Australians.
Atkinson experienced discomfort in his left hamstring post-delivery in his spell on Saturday.
The touring camp indicated the 27-year-old felt some "soreness" and was to take time off the field in order to be assessed "over the next few hours".
The series decider in this Ashes battle at the SCG begins at the end of the week.
The English side has previously lost fast bowlers one seamer with a knee problem and Jofra Archer because of a side injury during this series.
Matthew Fisher was called up as injury reinforcement.
His form was underwhelming during the first two matches, claiming a mere three wickets.
He was left out from the previous Test, then recalled for the Boxing Day match to fill the void.
Surrey's Atkinson showed better form in Melbourne, bagging two scalps in Australia's first innings, and scoring 28 runs with the bat as one of just three English batsmen who passed ten runs.
After bowling one over in Australia's second innings, he resumed the next day and had nightwatchman taken by the wicketkeeper.
Yet, towards the conclusion of the fifth over, he delivered a slower ball to Travis Head and suddenly grabbed his left hamstring.
Atkinson was recalled for the fourth Ashes Test following his omission of the third.
