Manchester United manager Erik ten Hag admits that he would prefer to have a fully fit squad.
The Red Devils have suffered another blow in the form of striker Rasmus Hojlund.
The Denmark international will miss two to three weeks with a muscle problem.
Ahead of a game against Fulham, Ten Hag told reporters: "Of course that is an issue but other clubs have this and we have to deal with this I feel we can deal with it better but it's an issue when the depth of the squad... I don't go into that discussion now.
What we look forward to is the future and what I discussed previously, you always have to improve, you always have to do better, bad structures can help for the future because the competitors never sleep, they always improve.
As you see last season, third in the league, we have two finals, the way is not too far, you see in the last games what this team is capable of and the potential for this team is very good."
On injuries giving opportunities to others, he added: "Both. All the players will get the opportunity to show their qualities, of course we are very curious and we have the confidence they can because that's why we constructed the squad when we went into the January window, we saw players who didn't have the chance in the first half of the season or they were injured and now they will get opportunities and now it's about them to be confident."