This is a major problem for Alan Pardew who knows his side MUST produce the goods and get three points from Leicester City next weekend or face an angry mob at St James' Park.
Is Rob Elliot the man we can bank on in such a hostile atmosphere?
God forbid!
Tiger Tim to miss Foxes fixture?
Krul has a history of elbow problems, he had a six-week spell out with the same injury in the 2012-13 season.
Not a first team regular for Holland, it was ironic he didn't play in Friday’s 3-1 win over Kazakhstan in Amsterdam, but picked up the injury in training yesterday
He joins international colleague Daryl Janmaat who was forced out of the Holland squad with a hamstring problem last weekend.