Newcastle midfielder Yohan Cabaye has been ruled out of action until February as he needs further surgery on a groin problem.
Cabaye underwent an operation in Paris to repair the injury which has sidelined him since the Magpies' defeat at West Ham on November 11.
The former Lille player, who has impressed since his arrival on Tyneside last year, has made 13 appearances for Newcastle in all competitions this season.
Newcastle have failed to win in Cabaye's absence, losing 2-1 at home to Swansea, drawing 1-1 with Maritimo in the Europa League clash at St James' Park last week and losing 2-0 to Southampton on Sunday.
"He's had one side of his groin done and that caused a potential weakness in the other side, so that needs to be done," said Alan Pardew.
"That will be done I think, today or tomorrow and he will probably be out for eight weeks."
The news comes as a further blow for Pardew who is also without central defender Steven Taylor after he damaged a hamstring in Sunday's defeat.
Pardew currently has 11 senior players unavailable to him ahead of the side's trip to Stoke on Wednesday.
"We are probably looking at February 1 for both he and Steven so we might as well get the bad news out of the way, because that's what it is, and just focus on what is important, and that's what we have got left," added Pardew.