Seamer Atkinson Adds to the English team's Injury Worries.
'Serious blow' for England after Atkinson is forced off due to a hamstring issue.
Gus Atkinson increased the fitness woes of the England squad when he left the playing area on the second morning of the Boxing Day Test against Australia.
The right-arm seamer pulled up with his left leg post-delivery of the fourth over on Saturday.
The touring camp indicated Atkinson reported "discomfort" and was to take time on the sidelines to undergo evaluation "over the next few hours".
The series decider of the series at the SCG begins this coming Sunday.
The English side has previously lost strike bowlers one seamer due to knee trouble and another paceman with an abdominal strain on the current trip.
Matthew Fisher was called up as injury reinforcement.
Atkinson struggled during the first two matches, taking just three wickets.
He was dropped from the previous Test, before being recalled for the fourth Test as Archer's replacement.
The county bowler improved at the MCG, bagging two scalps during the host's first knock, before adding 28 with the bat as one of just three teammates to get into double digits.
Following a brief spell late on the first day, he came back for the second day's play and removed Scott Boland Scott Boland caught behind.
However, at the end of his spell, he sent down a variation to Travis Head and promptly felt at his leg.
Atkinson was brought back for the Boxing Day Test following his omission the Adelaide game.
