Fast bowler Atkinson Compounds the English team's Injury Worries.
'Significant concern' for the touring side after Atkinson goes off with a hamstring injury.
Gus Atkinson added to the fitness woes of the England squad upon exiting the field on the second morning of the fourth Ashes Test against Australia.
The right-arm seamer felt a problem in his left hamstring immediately following a delivery of the fourth over at the MCG.
The touring camp reported the 27-year-old had experienced "tightness" and would spend time off the field to undergo evaluation "during the day".
The series decider of the tour in Sydney begins on Sunday, 4 January.
England have already lost fast bowlers Mark Wood due to knee trouble and another paceman because of a side injury on the current trip.
A replacement bowler was added to the party as cover for Wood.
Atkinson struggled in the opening two Tests, claiming a mere a handful of scalps.
He was dropped for the Adelaide match, only to be brought back for the Boxing Day match as Archer's replacement.
Atkinson showed better form in Melbourne, taking two wickets during the host's first knock, before adding 28 while batting among just a trio of England players to reach double figures.
Post a single over at the end of day one, he resumed the next day and had nightwatchman Scott Boland caught behind.
Yet, towards the conclusion of the fifth over, he bowled a change of pace to Travis Head and suddenly grabbed for his hamstring.
Atkinson was recalled for the Melbourne match following his omission the previous Test.
