Paceman Atkinson Adds to the English team's Injury Worries.
'Major setback' for the English camp after Atkinson leaves the field due to a hamstring issue.
The English seamer increased the injury concerns plaguing England when he left the field early on day two of the Boxing Day Test versus the Australians.
The pace bowler pulled up with his left leg immediately following a delivery in his spell at the MCG.
The touring camp reported Atkinson had experienced "tightness" and would spend time on the sidelines for further assessment "over the next few hours".
The concluding match of the tour in Sydney gets underway at the end of the week.
The English side has previously lost key quicks one seamer to a knee injury and Jofra Archer to a side strain on the current trip.
Matthew Fisher was brought into the squad as cover for Wood.
Atkinson struggled during the first two matches, taking just three wickets.
He was omitted from the previous Test, only to be brought back for the Melbourne Test in the playing XI.
The county bowler performed better in the fourth Test, taking two wickets in Australia's first innings, before adding 28 with the bat as one of just three England players who passed ten runs.
After bowling one over at the end of day one, he returned for the second day's play and removed Scott Boland edging to the keeper.
Yet, at the end of his spell, he sent down a variation to the batsman and immediately felt for his hamstring.
Atkinson was brought back for the Boxing Day Test following his omission the previous Test.