Seamer Atkinson Compounds the English team's Fitness Worries.
'Major setback' for England as Atkinson leaves the field suffering a hamstring problem.
Gus Atkinson added to the injury concerns plaguing England when he left the ground during Saturday's play of the Boxing Day Test against Australia.
The right-arm seamer experienced discomfort in his left leg after the final ball in his spell at the MCG.
The touring camp stated Atkinson reported "discomfort" and would spend time on the sidelines in order to be assessed "during the day".
The final Test of the series beginning on 4 January starts at the end of the week.
The visitors have already lost strike bowlers Mark Wood due to knee trouble and Jofra Archer because of a side injury on this Ashes tour.
Matthew Fisher was brought into the squad to provide backup.
His form was underwhelming in the opening two Tests, claiming a mere three wickets.
He was omitted from the previous Test, only to be brought back for the Boxing Day match to fill the void.
Surrey's Atkinson improved at the MCG, claiming a couple of wickets during the host's first knock, and scoring 28 runs with the bat being one of only three teammates to get into double digits.
Following a brief spell late on the first day, he returned the next day and had nightwatchman taken by the wicketkeeper.
Yet, at the end of the fifth over, he delivered a change of pace to Travis Head and suddenly grabbed for his hamstring.
Gus Atkinson returned to the side for the Boxing Day Test following his omission the Adelaide game.