Seamer Gus Atkinson Compounds England's Fitness Concerns.
'Significant concern' for England as Atkinson goes off due to a hamstring issue.
The pace bowler increased England's injury problems upon exiting the ground on the second morning in the Melbourne Test versus the Australians.
The right-arm seamer pulled up with his left leg after the final ball in his spell at the MCG.
Team management reported Atkinson felt some "soreness" and would spend time away from the action in order to be assessed "over the next few hours".
The series decider of the tour in Sydney gets underway on Sunday, 4 January.
England have been without strike 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.
The seamer had a tough time during the first two matches, managing only three wickets.
He was left out of the third Test, then recalled for the Melbourne Test to fill the void.
Surrey's Atkinson performed better in the fourth Test, claiming a couple of wickets during the host's first knock, before adding 28 as a batsman being one of only three England players to get into double digits.
Following a brief spell at the end of day one, he returned the next day and dismissed the nightwatchman taken by the wicketkeeper.
Unfortunately, at the end of the fifth over, he delivered a slower ball to Travis Head and promptly felt his left hamstring.
Gus Atkinson returned to the side for the Boxing Day Test after being left out of the third.
