Seamer Gus Atkinson Adds to the English team's Fitness Problems.
'Significant concern' for the touring side after Atkinson is forced off due to a hamstring issue.
Gus Atkinson further complicated the injury concerns plaguing England after leaving the field during Saturday's play of the fourth Ashes Test against Australia.
The right-arm seamer experienced discomfort in his left leg post-delivery in his spell at the MCG.
Team management reported Atkinson felt some "soreness" and required time away from the action to undergo evaluation "over the next few hours".
The final Test of the tour in Sydney gets underway on Sunday, 4 January.
The visitors have already lost fast bowlers Mark Wood with a knee problem and another paceman with an abdominal strain on this Ashes tour.
A replacement bowler was brought into the squad to provide backup.
His form was underwhelming in the opening two Tests, taking just a handful of scalps.
He was left out of the third Test, before being recalled for the fourth Test in the playing XI.
Surrey's Atkinson showed better form in Melbourne, taking two wickets in Australia's first innings, then making 28 while batting among just a trio of English batsmen who passed ten runs.
After bowling one over in Australia's second innings, he returned the next day and had nightwatchman taken by the wicketkeeper.
Unfortunately, on the final ball of his spell, he bowled a variation to Travis Head and promptly felt his left hamstring.
The English bowler was recalled for the Boxing Day Test having missed the previous Test.
