Seamer Gus Atkinson Compounds the English team's Fitness Problems.
'Serious blow' for England after Atkinson goes off due to a hamstring issue.
The English seamer further complicated England's injury problems when he left the ground during Saturday's play in the Melbourne Test versus the Australians.
Atkinson felt a problem in his left leg immediately following a delivery of the fourth over on Saturday.
Team management stated Atkinson felt some "soreness" and was to take time on the sidelines to undergo evaluation "in the coming hours".
The series decider of the series in Sydney starts on Sunday, 4 January.
England have previously lost key quicks Mark Wood due to knee trouble and Jofra Archer to a side strain on this Ashes tour.
A replacement bowler was brought into the squad to provide backup.
His form was underwhelming during the first two matches, claiming a mere a handful of scalps.
He was omitted of the third Test, then recalled for the fourth Test to fill the void.
Atkinson showed better form in Melbourne, bagging two scalps during the host's first knock, before adding 28 while batting being one of only three teammates who passed ten runs.
Following a brief spell in Australia's second innings, he returned for the second day's play and had nightwatchman taken by the wicketkeeper.
However, towards the conclusion of the fifth over, he sent down a change of pace to the batsman and immediately felt his left hamstring.
Atkinson returned to the side for the Boxing Day Test following his omission of the third.
