Seamer Gus Atkinson Exacerbates the English team's Fitness Concerns.
'Significant concern' for the touring side as Atkinson is forced off due to a hamstring issue.
The English seamer further complicated the injury concerns plaguing England upon exiting the playing area during Saturday's play of the fourth Ashes Test against Australia.
The right-arm seamer pulled up with his left hamstring after the final ball in his spell during the morning session.
The England team stated Atkinson felt some "soreness" and was to take time off the field in order to be assessed "during the day".
The series decider in this Ashes battle beginning on 4 January gets underway at the end of the week.
The visitors have previously lost key quicks Mark Wood to a knee injury and another paceman with an abdominal strain on this Ashes tour.
A replacement bowler was called up as cover for Wood.
Atkinson struggled during the first two matches, taking just three wickets.
He was left out of the third Test, then recalled for the Melbourne Test as Archer's replacement.
Surrey's Atkinson showed better form in Melbourne, bagging two scalps in Australia's first innings, and scoring 28 runs while batting among just a trio of England players who passed ten runs.
Following a brief spell at the end of day one, he came back on Saturday morning and had nightwatchman edging to the keeper.
Yet, at the end of his spell, he delivered a variation to Travis Head and suddenly grabbed his left hamstring.
Atkinson was brought back for the Boxing Day Test following his omission the previous Test.