The concerns of the club come amid United plans to fly to the Middle East to take on a number of sides mid-season in a handful of lucrative, but ultimately meaningless, friendlies. United, whose financial difficulties are well documented, had been exploring the possibility of playing teams from the Saudi Pro League and beyond as a way to bring in some extra revenue.
When asked about the possibility, United boss Ruben Amorim reluctantly remained diplomatic. "We have to do it," he said. "We knew that when we missed out on Europe, we have a lot of things to do. We have our fans, we have the budget, we have to compensate for a lot of things. So, we have to do it. We will do it. We want to be with our fans around the world. If you have to do it, you have to manage to find the space to do it."
The economic impact of missing out on European football has hit deep in the Old Trafford coffers. When the Red Devils were humiliatingly beaten by Spurs in the Europa League final in May, the club missed out on a heavy financial bonus and put further pressure on their unsteady balance.
United were still able to make a series of high-profile attacking signings, but they have come at a cost and mid-season friendlies could have eased the burden. Now, with the fixture list blocking out most of the midweek spots, their plans could be put into jeopardy.