Seamer Gus Atkinson Adds to England's Fitness Worries.
'Serious blow' for the English camp after Atkinson is forced off suffering a hamstring problem.
The pace bowler further complicated England's injury problems upon exiting the ground on the second morning in the Melbourne Test in the Ashes series.
The pace bowler experienced discomfort in his left leg post-delivery of the fourth over at the MCG.
Team management stated the 27-year-old had experienced "tightness" and required time away from the action to undergo evaluation "over the next few hours".
The series decider of the tour in Sydney starts at the end of the week.
England have been without key quicks Mark Wood with a knee problem and another paceman to a side strain on this Ashes tour.
A replacement bowler was brought into the squad as injury reinforcement.
Atkinson struggled during the first two matches, taking just three wickets.
He was dropped of the third Test, before being recalled for the fourth Test to fill the void.
The county bowler showed better form in Melbourne, claiming a couple of wickets during the host's first knock, before adding 28 while batting as one of just three England players who passed ten runs.
After bowling one over in Australia's second innings, he returned for the second day's play and dismissed the nightwatchman taken by the wicketkeeper.
Yet, at the end of the fifth over, he sent down a variation to Travis Head and suddenly grabbed for his hamstring.
Atkinson returned to the side for the Melbourne match following his omission the previous Test.