As noted by Tim Oscroft on the club's official website, the Scotsman also confirmed Shinji Kagawa's illness in the lead-up to the Premier League champions' game with Newcastle:
Shinji has had a sickness and has been unwell. I will see how he is tomorrow, we hope to have him available, but he wasn’t too good after the game.
Manchester United will also be without the suspended Wayne Rooney for the Magpies' trip and Ben Hibbs from the club's site reports that United will once again have to contend with the loss of Michael Carrick.
Sky Sports adds that Robin van Persie is expected to miss the match and is yet to receive a return date from his groin injury.
Such occurrences underline exactly why Moyes needs to strengthen his squad in the January transfer window, a notion emphasised by United's poor start to the Premier League season.
The club's recent home loss to Everton—their first in over two decades—highlighted a squad that doesn't appear to be motivated this year.
While Moyes failed to capture the likes of Cesc Fabregas, Ander Herrera and Sami Khedira during the summer, as noted by ESPN.co.uk, the £27.5 million signing of Marouane Fellaini has typified United's troublesome few months.
The bumbling Belgian, who performed so brilliantly during his tenure with Everton, has failed to instantly adapt to Old Trafford life and needs to hit the ground running across the next few weeks.
As tweeted by John Brewin of ESPN, United's stats couldn't be more telling with Fellaini in the side:
While fans will be buoyed by Moyes' willingness to spend, a controlled sense of excitement is perhaps best right now. Whether it was the lack of financial backing, poor planning or bad luck, Moyes failed to deliver his targets in the summer.
United are currently 12 points off Arsenal at the top of the Premier League and have a long way to go if they are to retain the English crown.
January surely can't come quick enough for a club that needs an injection of talent and major clearance of deadwood to compete at the top once again.