Seamer Atkinson Adds to the English team's Injury Concerns.
'Serious blow' for the touring side after Atkinson leaves the field with a hamstring injury.
The pace bowler increased the fitness woes of the England squad after leaving the ground during Saturday's play in the Melbourne Test in the Ashes series.
Atkinson felt a problem in his left leg immediately following a delivery in his spell during the morning session.
The touring camp stated Atkinson had experienced "tightness" and would spend time off the field for further assessment "during the day".
The series decider in this Ashes battle beginning on 4 January begins at the end of the week.
The visitors have been without key quicks Mark Wood due to knee trouble and Jofra Archer with an abdominal strain on this Ashes tour.
A replacement bowler was brought into the squad as injury reinforcement.
Atkinson struggled during the first two matches, claiming a mere a handful of scalps.
He was left out of the third Test, then recalled for the fourth Test to fill the void.
The county bowler improved at the MCG, bagging two scalps with the ball, and scoring 28 runs as a batsman being one of only three English batsmen who passed ten runs.
Post a single over at the end of day one, he returned for the second day's play and had nightwatchman edging to the keeper.
However, on the final ball of the fifth over, he bowled a variation to the batsman and promptly felt at his leg.
The English bowler was brought back for the Melbourne match following his omission the Adelaide game.
