Seamer Atkinson Compounds England's Fitness Worries.
'Significant concern' for England after Atkinson is forced off suffering a hamstring problem.
Gus Atkinson further complicated England's injury problems upon exiting the field on the second morning of the Boxing Day Test in the Ashes series.
Atkinson pulled up with his hamstring after the final ball that he bowled on Saturday.
The touring camp indicated the 27-year-old had experienced "tightness" and required time on the sidelines to undergo evaluation "during the day".
The series decider in this Ashes battle beginning on 4 January starts at the end of the week.
The visitors have already lost strike bowlers Mark Wood to a knee injury and Jofra Archer with an abdominal strain on the current trip.
Matthew Fisher was called up to provide backup.
His form was underwhelming during the first two matches, taking just three wickets.
He was left out of the third Test, before being recalled for the Melbourne Test in the playing XI.
Atkinson performed better in the fourth Test, bagging two scalps with the ball, before adding 28 while batting as one of just three England players to get into double digits.
Post a single over at the end of day one, he resumed for the second day's play and removed Scott Boland Scott Boland caught behind.
Yet, towards the conclusion of the fifth over, he sent down a variation to Travis Head and immediately felt for his hamstring.
The English bowler was brought back for the Melbourne match following his omission the Adelaide game.
