Fast bowler Gus Atkinson Compounds England's Fitness Problems.
'Significant concern' for the English camp as Atkinson leaves the field suffering a hamstring problem.
Gus Atkinson increased the fitness woes of the England squad after leaving the playing area during Saturday's play in the Melbourne Test in the Ashes series.
The right-arm seamer felt a problem in his hamstring post-delivery that he bowled on Saturday.
Team management indicated the 27-year-old reported "discomfort" and was to take time on the sidelines to undergo evaluation "during the day".
The final Test of the tour in Sydney gets underway on Sunday, 4 January.
The English side has previously lost key quicks one seamer due to knee trouble and Jofra Archer because of a side injury on this Ashes tour.
A replacement bowler was called up to provide backup.
The seamer had a tough time during the first two matches, managing only three wickets.
He was dropped 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, then making 28 as a batsman being one of only three English batsmen to get into double digits.
After bowling one over late on the first day, he came back the next day and removed Scott Boland taken by the wicketkeeper.
However, at the end of that over, he delivered a variation to Travis Head and promptly felt his left hamstring.
Atkinson was recalled for the fourth Ashes Test having missed of the third.