It is a massive ask of Rob Elliot, United have fixtures against Chelsea, Arsenal, Manchester United and Everton all coming over the next month.
Krul has been the rock Newcastle's defence has been built on.
Aaron Cresswell's winner was the first goal United have leaked in more than 400 minutes of play.
Alan Pardew (talkin to BBC Sport): "Rob Elliot will be in goal for the next four or five games.
"It's been blow after blow this year, but we've rode them, and that's been the key to our success.
"We've put younger players in and those in the group. We lose Tim, but Rob's produced a super performance."