Seamer Gus Atkinson Adds to the English team's Fitness Concerns.
'Significant concern' for the English camp after Atkinson goes off due to a hamstring issue.
The pace bowler further complicated England's injury problems upon exiting the field on the second morning of the fourth Ashes Test against Australia.
Atkinson felt a problem in his hamstring after the final ball that he bowled at the MCG.
Team management stated Atkinson had experienced "tightness" and would spend time on the sidelines in order to be assessed "over the next few hours".
The concluding match in this Ashes battle beginning on 4 January gets underway at the end of the week.
The English side has been without fast bowlers Mark Wood with a knee problem and Jofra Archer with an abdominal strain on this Ashes tour.
A replacement bowler was added to the party as cover for Wood.
The seamer had a tough time in the opening two Tests, taking just a handful of scalps.
He was dropped for the Adelaide match, then recalled for the fourth Test to fill the void.
The county bowler showed better form in Melbourne, taking two wickets in Australia's first innings, before adding 28 while batting as one of just three teammates to reach double figures.
Post a single over late on the first day, he came back the next day and dismissed the nightwatchman taken by the wicketkeeper.
Yet, towards the conclusion of his spell, he sent down a slower ball to Travis Head and suddenly grabbed his left hamstring.
Atkinson was recalled for the Boxing Day Test having missed the previous Test.