Seamer Gus Atkinson Adds to the English team's Fitness Problems.
'Significant concern' for the English camp after Atkinson goes off due to a hamstring issue.
The English seamer increased the injury concerns plaguing England upon exiting the ground early on day two of the Boxing Day Test versus the Australians.
The right-arm seamer felt a problem in his hamstring post-delivery that he bowled on Saturday.
The England team stated Atkinson reported "discomfort" and required time off the field for further assessment "in the coming hours".
The concluding match of the tour in Sydney begins at the end of the week.
England have been without strike bowlers one seamer due to knee trouble and another paceman to a side strain during this series.
A replacement bowler was called up as injury reinforcement.
The seamer had a tough time in the opening two Tests, taking just a handful of scalps.
He was dropped for the Adelaide match, only to be brought back for the Boxing Day match as Archer's replacement.
The county bowler performed better in the fourth Test, taking two wickets in Australia's first innings, and scoring 28 runs as a batsman among just a trio of English batsmen to reach double figures.
Post a single over late on the first day, he resumed for the second day's play and had nightwatchman Scott Boland caught behind.
However, on the final ball of that over, he delivered a variation to the batsman and immediately felt his left hamstring.
The English bowler was brought back for the Melbourne match having missed of the third.
