Fast bowler Atkinson Adds to the English team's Fitness Problems.
'Major setback' for the touring side as Atkinson is forced off suffering a hamstring problem.
Gus Atkinson further complicated the injury concerns plaguing England upon exiting the ground during Saturday's play of the fourth Ashes Test against Australia.
The pace bowler pulled up with his left leg post-delivery that he bowled on Saturday.
The England team stated the 27-year-old felt some "soreness" and would spend time away from the action in order to be assessed "over the next few hours".
The concluding match in this Ashes battle beginning on 4 January begins at the end of the week.
England have previously lost key quicks Mark Wood with a knee problem and another paceman to a side strain on this Ashes tour.
A replacement bowler was added to the party to provide backup.
His form was underwhelming during the first two matches, taking just a handful of scalps.
He was dropped from the previous Test, then recalled for the Boxing Day match in the playing XI.
Surrey's Atkinson improved at the MCG, claiming a couple of wickets during the host's first knock, and scoring 28 runs while batting among just a trio of England players to get into double digits.
Post a single over in Australia's second innings, he returned for the second day's play and had nightwatchman Scott Boland caught behind.
However, at the end of the fifth over, he delivered a change of pace to the batsman and immediately felt at his leg.
Atkinson was brought back for the Melbourne match having missed of the third.
