Paceman Gus Atkinson Compounds the English team's Fitness Worries.
'Significant concern' for the touring side after Atkinson leaves the field due to a hamstring issue.
Gus Atkinson further complicated the fitness woes of the England squad when he left the field during Saturday's play in the Melbourne Test in the Ashes series.
The right-arm seamer pulled up with his left leg post-delivery that he bowled on Saturday.
The England team indicated the 27-year-old reported "discomfort" and required time away from the action for further assessment "during the day".
The concluding match of the tour at the SCG begins on Sunday, 4 January.
The English side has already lost key quicks one seamer due to knee trouble and another paceman because of a side injury during this series.
A replacement bowler was brought into the squad to provide backup.
Atkinson struggled during the first two matches, claiming a mere a handful of scalps.
He was dropped for the Adelaide match, before being recalled for the fourth Test to fill the void.
Surrey's Atkinson showed better form in Melbourne, claiming a couple of wickets in Australia's first innings, then making 28 while batting as one of just three teammates who passed ten runs.
Following a brief spell late on the first day, he returned the next day and dismissed the nightwatchman taken by the wicketkeeper.
Unfortunately, at the end of that over, he delivered a change of pace to Travis Head and immediately felt at his leg.
The English bowler was recalled for the Boxing Day Test having missed the previous Test.