Fast bowler Gus Atkinson Exacerbates the English team's Fitness Concerns.
'Serious blow' for the touring side as Atkinson is forced off with a hamstring injury.
The English seamer added to England's injury problems when he left the ground during Saturday's play in the Melbourne Test in the Ashes series.
Atkinson felt a problem in his hamstring after the final ball that he bowled during the morning session.
The touring camp indicated Atkinson had experienced "tightness" and was to take time away from the action to undergo evaluation "in the coming hours".
The concluding match of the tour at the SCG gets underway at the end of the week.
The English side has been without fast bowlers Mark Wood with a knee problem and Jofra Archer to a side strain on the current trip.
Matthew Fisher was brought into the squad as injury reinforcement.
His form was underwhelming in the opening two Tests, claiming a mere a handful of scalps.
He was omitted from the previous Test, only to be brought back for the Boxing Day match in the playing XI.
Surrey's Atkinson improved at the MCG, claiming a couple of wickets during the host's first knock, then making 28 while batting among just a trio of England players who passed ten runs.
After bowling one over at the end of day one, he came back the next day and had nightwatchman edging to the keeper.
Yet, towards the conclusion of his spell, he bowled a slower ball to Travis Head and suddenly grabbed his left hamstring.
The English bowler was brought back for the fourth Ashes Test having missed of the third.
