Fast bowler Atkinson Compounds the English team's Fitness Worries.
'Serious blow' for England as Atkinson leaves the field due to a hamstring issue.
The English seamer further complicated England's injury problems after leaving the ground during Saturday's play of the fourth Ashes Test in the Ashes series.
The pace bowler felt a problem in his left hamstring immediately following a delivery in his spell during the morning session.
The England team reported the 27-year-old had experienced "tightness" and would spend time away from the action for further assessment "during the day".
The concluding match of the series at the SCG starts on Sunday, 4 January.
The visitors have previously lost key quicks one seamer due to knee trouble and Jofra Archer because of a side injury on this Ashes tour.
A replacement bowler was called up as cover for Wood.
The seamer had a tough time in the opening two Tests, claiming a mere three wickets.
He was left out of the third Test, before being recalled for the Boxing Day match as Archer's replacement.
The county bowler performed better in the fourth Test, bagging two scalps in Australia's first innings, then making 28 while batting being one of only three England players who passed ten runs.
Following a brief spell in Australia's second innings, he returned on Saturday morning and had nightwatchman taken by the wicketkeeper.
Unfortunately, towards the conclusion of his spell, he bowled a variation to the batsman and immediately felt his left hamstring.
Gus Atkinson returned to the side for the Boxing Day Test after being left out of the third.
