Seamer Gus Atkinson Adds to England's Fitness Concerns.
'Significant concern' for England after Atkinson goes off with a hamstring injury.
The pace bowler increased England's injury problems after leaving the playing area on the second morning of the Boxing Day Test in the Ashes series.
Atkinson felt a problem in his left leg post-delivery in his spell during the morning session.
The touring camp reported the 27-year-old felt some "soreness" and required time on the sidelines for further assessment "during the day".
The final Test in this Ashes battle in Sydney gets underway this coming Sunday.
England have been without fast bowlers one seamer with a knee problem and Jofra Archer because of a side injury during this series.
A replacement bowler was called up to provide backup.
His form was underwhelming during the first two matches, managing only three wickets.
He was left out from the previous Test, only to be brought back for the Melbourne Test in the playing XI.
Atkinson performed better in the fourth Test, bagging two scalps in Australia's first innings, before adding 28 as a batsman being one of only three English batsmen who passed ten runs.
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 the fifth over, he bowled a slower ball to the batsman and suddenly grabbed his left hamstring.
Gus Atkinson was brought back for the Boxing Day Test following his omission the previous Test.
