ABO Eisa will be out for up to four months after undergoing surgery on a hamstring injury.

It is a huge blow for the City winger, who pulled up during the recent game at his former club Scunthorpe.

Scans showed significant damage and he was operated on last weekend.

That was Eisa’s first start of the season having missed the previous three months recovering from an injury to the same hamstring.

There is better news with Andy Cook who remains on course for his previously-scheduled return to action this month. He also went under the knife last week to rectify an ongoing groin issue.

Charles Vernam also continues to progress well from his hamstring injury and is set to be back training before the turn of the year.