Seamer Gus Atkinson Exacerbates the English team's Fitness Problems.
'Serious blow' for the touring side after Atkinson goes off due to a hamstring issue.
The pace bowler further complicated the injury concerns plaguing England after leaving the ground early on day two of the Boxing Day Test against Australia.
The pace bowler pulled up with his left hamstring post-delivery of the fourth over during the morning session.
Team management reported the 27-year-old reported "discomfort" and was to take time away from the action for further assessment "over the next few hours".
The concluding match in this Ashes battle in Sydney starts at the end of the week.
The visitors have already lost strike bowlers Mark Wood due to knee trouble and Jofra Archer to a side strain during this series.
A replacement bowler was brought into the squad to provide backup.
His form was underwhelming in the opening two Tests, claiming a mere three wickets.
He was left out for the Adelaide match, before being recalled for the fourth Test in the playing XI.
Surrey's Atkinson improved at the MCG, taking two wickets in Australia's first innings, and scoring 28 runs while batting being one of only three English batsmen to reach double figures.
After bowling one over in Australia's second innings, he resumed on Saturday morning and dismissed the nightwatchman edging to the keeper.
Yet, at the end of the fifth over, he sent down a variation to Travis Head and suddenly grabbed at his leg.
The English bowler was recalled for the Melbourne match having missed of the third.