Seamer Gus Atkinson Adds to the English team's Fitness Worries.
'Serious blow' for the English camp as Atkinson is forced off suffering a hamstring problem.
The pace bowler further complicated the fitness woes of the England squad upon exiting the playing area early on day two in the Melbourne Test in the Ashes series.
The pace bowler experienced discomfort in his left leg after the final ball in his spell during the morning session.
The touring camp reported Atkinson felt some "soreness" and would spend time on the sidelines in order to be assessed "during the day".
The series decider in this Ashes battle beginning on 4 January gets underway this coming Sunday.
The visitors have already lost key quicks one seamer with a knee problem and another paceman with an abdominal strain on this Ashes tour.
Matthew Fisher was called up as injury reinforcement.
Atkinson struggled during the first two matches, taking just a handful of scalps.
He was dropped for the Adelaide match, before being recalled for the fourth Test as Archer's replacement.
The county bowler showed better form in Melbourne, bagging two scalps in Australia's first innings, then making 28 as a batsman as one of just three English batsmen to get into double digits.
After bowling one over at the end of day one, he returned on Saturday morning and had nightwatchman Scott Boland caught behind.
Yet, on the final ball of that over, he delivered a variation to Travis Head and immediately felt his left hamstring.
Atkinson returned to the side for the Melbourne match having missed the previous Test.
