The head coach will have to chop THREE players from the 28 he has available in order to submit his Magpies 25-man squad for the remainder of the Premier League season.
And here’s an explainer on when it needs done by - and who is most likely at risk.
What is Newcastle United’s current 25-man squad?
GOALKEEPERS: Martin Dubravka, Karl Darlow, Freddie Woodman, Mark Gillespie
DEFENDERS: Paul Dummett, Jamal Lewis, Javier Manquillo, Ciaran Clark, Emil Krafth, Jamaal Lascelles, Fabian Schar, Federico Fernandez
MIDFIELDERS: Jacob Murphy, Matt Ritchie, Isaac Hayden, Sean Longstaff, Jonjo Shelvey, Jeff Hendrick, Joelinton, Joe Willock
FORWARDS: Ryan Fraser, Allan Saint-Maximin, Miguel Almiron, Callum Wilson, Dwight Gayle
Who will DEFINITELY miss out?
Two of the 25 from the first half of the season have already left the squad, dropping the number down to 23.
Freddie Woodman departed for Bournemouth on loan, while Jeff Hendrick also secured a temporary switch to QPR.
What other players are at risk?
Having added five players - and with only two spots available in the 25-man squad - there looks to be three players who will have to be left out.
Those who are left out cannot represent the Magpies in the Premier League for the rest of the season. And with United also being out of the FA Cup, that means no games for anyone outside the 25.
The players who look to be at the most risk are, as follows, Ciaran Clark, Jamal Lewis, Emil Krafth, Isaac Hayden and Dwight Gayle.
As per reports elsewhere, the trio most likely to get the chop are Clark, Lewis and currently injured Hayden.
And when will the new 25-man squad be named?
This is where things get a little ambiguous.
When NewcastleWorld asked the Premier League for guidance they suggested that the announcement will be made by the end of this calendar week, likely by Friday.
Clubs will submit their lists over the coming days and they will subsequently be published on the Premier League website.