Seamer Atkinson Adds to the English team's Injury Worries.
'Significant concern' for England as Atkinson goes off due to a hamstring issue.
The pace bowler increased the fitness woes of the England squad after leaving the ground on the second morning of the Boxing Day Test against Australia.
Atkinson felt a problem in his left hamstring after the final ball that he bowled at the MCG.
The touring camp indicated the 27-year-old reported "discomfort" and required time off the field for further assessment "in the coming hours".
The series decider of the tour in Sydney gets underway this coming Sunday.
The English side has already lost key quicks one seamer to a knee injury and Jofra Archer with an abdominal strain on this Ashes tour.
Matthew Fisher was added to the party as cover for Wood.
Atkinson struggled during the first two matches, taking just three wickets.
He was omitted of the third Test, then recalled for the Melbourne Test in the playing XI.
Atkinson performed better in the fourth Test, taking two wickets in Australia's first innings, before adding 28 with the bat among just a trio of England players to get into double digits.
Post a single over in Australia's second innings, he returned the next day and dismissed the nightwatchman edging to the keeper.
However, towards the conclusion of the fifth over, he bowled a change of pace to the batsman and promptly felt for his hamstring.
Atkinson returned to the side for the Melbourne match having missed the Adelaide game.
