Fast bowler Gus Atkinson Compounds the English team's Injury Problems.
'Serious blow' for the English camp after Atkinson leaves the field due to a hamstring issue.
The pace bowler increased the fitness woes of the England squad upon exiting the field on the second morning in the Melbourne Test in the Ashes series.
The pace bowler felt a problem in his left leg after the final ball that he bowled at the MCG.
The England team stated the 27-year-old felt some "soreness" and required time away from the action for further assessment "in the coming hours".
The concluding match in this Ashes battle in Sydney begins on Sunday, 4 January.
The English side has previously lost strike bowlers one seamer due to knee trouble and another paceman with an abdominal strain during this series.
Matthew Fisher was brought into the squad to provide backup.
His form was underwhelming early in the series, claiming a mere three wickets.
He was left out from the previous Test, then recalled for the Boxing Day match as Archer's replacement.
The county bowler performed better in the fourth Test, claiming a couple of wickets in Australia's first innings, and scoring 28 runs as a batsman being one of only three teammates to reach double figures.
Post a single over late on the first day, he returned the next day and had nightwatchman taken by the wicketkeeper.
Yet, at the end of that over, he delivered a variation to Travis Head and suddenly grabbed for his hamstring.
Atkinson returned to the side for the fourth Ashes Test after being left out the previous Test.