Fast bowler Atkinson Adds to England's Injury Worries.
'Serious blow' for the touring side as Atkinson is forced off due to a hamstring issue.
The English seamer added to the fitness woes of the England squad after leaving the playing area early on day two in the Melbourne Test in the Ashes series.
The right-arm seamer felt a problem in his left leg post-delivery of the fourth over during the morning session.
The touring camp indicated the 27-year-old had experienced "tightness" and was to take time off the field for further assessment "over the next few hours".
The concluding match in this Ashes battle at the SCG begins on Sunday, 4 January.
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 added to the party as cover for Wood.
The seamer had a tough time early in the series, claiming a mere three wickets.
He was dropped from the previous Test, then recalled for the Melbourne Test in the playing XI.
Atkinson performed better in the fourth Test, claiming a couple of wickets with the ball, then making 28 while batting among just a trio of teammates to reach double figures.
Post a single over at the end of day one, he came back on Saturday morning and removed Scott Boland edging to the keeper.
Unfortunately, on the final ball of the fifth over, he delivered a change of pace to the batsman and immediately felt at his leg.
Atkinson was recalled for the Boxing Day Test after being left out the Adelaide game.
