Paceman Atkinson Adds to the English team's Fitness Concerns.
'Serious blow' for the touring side after Atkinson goes off with a hamstring injury.
Gus Atkinson further complicated the injury concerns plaguing England when he left the ground on the second morning of the Boxing Day Test in the Ashes series.
Atkinson felt a problem in his hamstring immediately following a delivery of the fourth over at the MCG.
The England team reported Atkinson had experienced "tightness" and required time away from the action in order to be assessed "in the coming hours".
The concluding match in this Ashes battle beginning on 4 January begins on Sunday, 4 January.
England have been without fast bowlers Mark Wood due to knee trouble and Jofra Archer with an abdominal strain on the current trip.
A replacement bowler was added to the party as injury reinforcement.
His form was underwhelming during the first two matches, managing only three wickets.
He was left out for the Adelaide match, before being recalled for the Melbourne Test to fill the void.
The county bowler showed better form in Melbourne, taking two wickets with the ball, then making 28 as a batsman as one of just three English batsmen who passed ten runs.
Post a single over late on the first day, he resumed for the second day's play and had nightwatchman edging to the keeper.
Yet, at the end of his spell, he bowled a slower ball to Travis Head and suddenly grabbed for his hamstring.
Gus Atkinson was recalled for the fourth Ashes Test following his omission of the third.
