I also read this news and it seems to have been confirmed by Ten Hag that he is injured although it is not too severe because the possibility of absence is only 2-3 weeks and Ten Hag also said not to panic too much about this but on the other hand, Hojlund's injury is a situation that can be a caution for us.
Not intending to make this seem bad but we are aware that currently Hojlund's performance is in a very positive trend and can even be said to be on fire because after all with the 7 goals he has created in the last few matches it has actually proven a pretty good improvement and with Hojlund's current injury it could potentially make his performance decline a little because after all after a player is injured there can be adaptations that make it possible to make him not as good as before even though it becomes a fify-fifty but that possibility is always there in the end.

On the other hand with the goal productivity and finishing of some of the current Manchester United players if there is no Hojlund then I dare not speculate higher because even though there is still Rashford in the squad but it seems like this is still a risk especially if you look at the current schedule we must be aware that they will face the Manchester derby in the near future and Hojlund is still not able to appear as a player because he is still in the healing phase.