Paceman Atkinson Exacerbates England's Fitness Concerns.
'Serious blow' for England after Atkinson leaves the field due to a hamstring issue.
The pace bowler further complicated the injury concerns plaguing England when he left the ground during Saturday's play of the Boxing Day Test in the Ashes series.
The right-arm seamer felt a problem in his hamstring immediately following a delivery of the fourth over during the morning session.
The touring camp reported Atkinson felt some "soreness" and required time off the field in order to be assessed "in the coming hours".
The final Test of the series beginning on 4 January gets underway on Sunday, 4 January.
England have previously lost key quicks one seamer with a knee problem and Jofra Archer to a side strain on this Ashes tour.
Matthew Fisher was added to the party as injury reinforcement.
The seamer had a tough time early in the series, claiming a mere a handful of scalps.
He was left out of the third Test, before being recalled for the Boxing Day match in the playing XI.
Atkinson performed better in the fourth Test, taking two wickets in Australia's first innings, then making 28 with the bat among just a trio of teammates to get into double digits.
Following a brief spell late on the first day, he returned the next day and had nightwatchman Scott Boland caught behind.
Yet, at the end of that over, he delivered a change of pace to Travis Head and suddenly grabbed for his hamstring.
Atkinson was brought back for the Melbourne match after being left out the Adelaide game.