Paceman Atkinson Adds to England's Fitness Concerns.
'Serious blow' for the English camp after Atkinson goes off due to a hamstring issue.
The English seamer further complicated the injury concerns plaguing England when he left the ground on the second morning of the Boxing Day Test versus the Australians.
Atkinson pulled up with his hamstring immediately following a delivery that he bowled during the morning session.
The England team reported Atkinson reported "discomfort" and would spend time on the sidelines for further assessment "in the coming hours".
The concluding match of the series at the SCG begins this coming Sunday.
The English side has been without key quicks Mark Wood to a knee injury and another paceman to a side strain during this series.
Matthew Fisher was called up as injury reinforcement.
His form was underwhelming early in the series, claiming a mere three wickets.
He was omitted of the third Test, then recalled for the Melbourne Test in the playing XI.
Atkinson performed better in the fourth Test, taking two wickets in Australia's first innings, before adding 28 while batting as one of just three teammates to reach double figures.
After bowling one over late on the first day, he returned the next day and removed Scott Boland Scott Boland caught behind.
However, at the end of that over, he bowled a variation to the batsman and promptly felt his left hamstring.
Atkinson returned to the side for the Melbourne match after being left out of the third.
