Fast bowler Atkinson Compounds England's Fitness Problems.
'Major setback' for England after Atkinson leaves the field with a hamstring injury.
Gus Atkinson further complicated the injury concerns plaguing England upon exiting the ground on the second morning in the Melbourne Test in the Ashes series.
Atkinson pulled up with his left hamstring after the final ball of the fourth over during the morning session.
Team management reported the 27-year-old reported "discomfort" and would spend time away from the action for further assessment "over the next few hours".
The concluding match of the series at the SCG begins this coming Sunday.
England have previously lost strike bowlers Mark Wood due to knee trouble and Jofra Archer because of a side injury on the current trip.
A replacement bowler was called up as cover for Wood.
The seamer had a tough time in the opening two Tests, claiming a mere three wickets.
He was omitted for the Adelaide match, only to be brought back for the Melbourne Test to fill the void.
Atkinson performed better in the fourth Test, taking two wickets during the host's first knock, then making 28 while batting among just a trio of teammates to get into double digits.
After bowling one over at the end of day one, he returned on Saturday morning and dismissed the nightwatchman edging to the keeper.
However, towards the conclusion of that over, he delivered a variation to Travis Head and suddenly grabbed his left hamstring.
Gus Atkinson was recalled for the Melbourne match after being left out the previous Test.
