Seamer Gus Atkinson Adds to the English team's Injury Concerns.
'Significant concern' for the touring side as Atkinson is forced off with a hamstring injury.
The pace bowler added to England's injury problems after leaving the field early on day two of the Boxing Day Test in the Ashes series.
Atkinson pulled up with his left hamstring immediately following a delivery that he bowled at the MCG.
The England team stated the 27-year-old reported "discomfort" and required time away from the action to undergo evaluation "in the coming hours".
The final Test in this Ashes battle in Sydney gets underway at the end of the week.
The English side has already lost strike bowlers one seamer with a knee problem and Jofra Archer because of a side injury during this series.
Matthew Fisher was brought into the squad to provide backup.
The seamer had a tough time during the first two matches, managing only three wickets.
He was dropped of the third Test, then recalled for the Boxing Day match in the playing XI.
Atkinson performed better in the fourth Test, taking two wickets with the ball, then making 28 with the bat being one of only three teammates who passed ten runs.
After bowling one over in Australia's second innings, he came back for the second day's play and removed Scott Boland taken by the wicketkeeper.
However, at the end of that over, he sent down a slower ball to Travis Head and immediately felt at his leg.
The English bowler was recalled for the fourth Ashes Test having missed the Adelaide game.