Seamer Gus Atkinson Adds to England's Fitness Concerns.

'Significant concern' for the English camp after Atkinson goes off with a hamstring injury.

The English seamer further complicated England's injury problems upon exiting the field during Saturday's play of the Boxing Day Test against Australia.

Atkinson pulled up with his hamstring after the final ball of the fourth over on Saturday.

The England team stated the 27-year-old reported "discomfort" and was to take time off the field in order to be assessed "during the day".

The series decider in this Ashes battle in Sydney gets underway on Sunday, 4 January.

The English side has previously lost strike bowlers one seamer to a knee injury and another paceman with an abdominal strain during this series.

Matthew Fisher was brought into the squad as cover for Wood.

His form was underwhelming in the opening two Tests, managing only three wickets.

He was left out for the Adelaide match, before being recalled for the fourth Test to fill the void.

The county bowler improved at the MCG, bagging two scalps with the ball, then making 28 while batting being one of only three teammates who passed ten runs.

After bowling one over in Australia's second innings, he came back on Saturday morning and removed Scott Boland edging to the keeper.

Unfortunately, at the end of that over, he sent down a variation to Travis Head and suddenly grabbed at his leg.