Paceman Gus Atkinson Adds to the English team's Fitness Problems.
'Major setback' for England after Atkinson goes off suffering a hamstring problem.
The pace bowler further complicated the injury concerns plaguing England upon exiting the ground during Saturday's play of the Boxing Day Test versus the Australians.
The pace bowler felt a problem in his left leg after the final ball in his spell during the morning session.
The England team reported Atkinson had experienced "tightness" and required time away from the action to undergo evaluation "over the next few hours".
The series decider of the tour at the SCG starts on Sunday, 4 January.
The English side has previously lost strike bowlers Mark Wood with a knee problem and another paceman with an abdominal strain during this series.
Matthew Fisher was brought into the squad as cover for Wood.
The seamer had a tough time in the opening two Tests, managing only a handful of scalps.
He was dropped for the Adelaide match, before being recalled for the Melbourne Test as Archer's replacement.
The county bowler showed better form in Melbourne, taking two wickets during the host's first knock, and scoring 28 runs as a batsman as one of just three England players to reach double figures.
Post a single over at the end of day one, he resumed for the second day's play and dismissed the nightwatchman Scott Boland caught behind.
Unfortunately, towards the conclusion of his spell, he delivered a change of pace to the batsman and promptly felt for his hamstring.
Gus Atkinson was recalled for the Boxing Day Test following his omission of the third.
