Paceman Atkinson Adds to England's Fitness Concerns.
'Significant concern' for the English camp after Atkinson leaves the field due to a hamstring issue.
Gus Atkinson added to England's injury problems when he left the ground during Saturday's play in the Melbourne Test against Australia.
The right-arm seamer felt a problem in his left hamstring post-delivery of the fourth over on Saturday.
The England team stated Atkinson reported "discomfort" and was to take time away from the action in order to be assessed "during the day".
The series decider in this Ashes battle beginning on 4 January starts this coming Sunday.
England have previously lost strike bowlers one seamer to a knee injury and another paceman to a side strain on the current trip.
A replacement bowler was called up to provide backup.
His form was underwhelming early in the series, taking just a handful of scalps.
He was dropped of the third Test, only to be brought back for the fourth Test in the playing XI.
The county bowler improved at the MCG, claiming a couple of wickets in Australia's first innings, before adding 28 while batting as one of just three English batsmen who passed ten runs.
Following a brief spell at the end of day one, he came back on Saturday morning and removed Scott Boland edging to the keeper.
However, at the end of his spell, he delivered a variation to the batsman and immediately felt for his hamstring.
Atkinson returned to the side for the Boxing Day Test after being left out of the third.