Seamer Atkinson Compounds the English team's Fitness Problems.
'Serious blow' for England after Atkinson leaves the field suffering a hamstring problem.
Gus Atkinson further complicated the fitness woes of the England squad upon exiting the ground on the second morning of the fourth Ashes Test against Australia.
Atkinson pulled up with his left hamstring immediately following a delivery in his spell on Saturday.
The England team indicated the 27-year-old felt some "soreness" and was to take time off the field for further assessment "during the day".
The concluding match of the series at the SCG begins on Sunday, 4 January.
The visitors have been without key quicks Mark Wood with a knee problem and another paceman because of a side injury on the current trip.
Matthew Fisher was brought into the squad to provide backup.
The seamer had a tough time in the opening two Tests, managing only a handful of scalps.
He was left out for the Adelaide match, before being recalled for the Boxing Day match as Archer's replacement.
Atkinson improved at the MCG, taking two wickets during the host's first knock, then making 28 with the bat being one of only three England players to reach double figures.
After bowling one over in Australia's second innings, he returned on Saturday morning and dismissed the nightwatchman edging to the keeper.
However, at the end of that over, he bowled a change of pace to Travis Head and promptly felt his left hamstring.
Gus Atkinson was recalled for the Melbourne match after being left out the Adelaide game.
