Paceman Atkinson Adds to England's Fitness Concerns.
'Major setback' for England after Atkinson goes off with a hamstring injury.
The English seamer added to the fitness woes of the England squad upon exiting the field early on day two in the Melbourne Test against Australia.
The pace bowler experienced discomfort in his hamstring post-delivery of the fourth over during the morning session.
The England team reported the 27-year-old had experienced "tightness" and required time off the field for further assessment "during the day".
The final Test of the series at the SCG gets underway this coming Sunday.
England have already lost strike bowlers Mark Wood due to knee trouble and another paceman because of a side injury on this Ashes tour.
Matthew Fisher was called up as injury reinforcement.
Atkinson struggled during the first two matches, taking just three wickets.
He was left out of the third Test, only to be brought back for the Boxing Day match as Archer's replacement.
The county bowler performed better in the fourth Test, claiming a couple of wickets with the ball, before adding 28 as a batsman as one of just three England players to reach double figures.
Following a brief spell at the end of day one, he returned for the second day's play and dismissed the nightwatchman taken by the wicketkeeper.
However, towards the conclusion of that over, he delivered a slower ball to Travis Head and immediately felt his left hamstring.
The English bowler was brought back for the fourth Ashes Test after being left out of the third.
