Manchester United boss Erik Ten Hag has refused to divulge the extent of Marcus Rashford's injury this week.
The United forward came off late in their win over Barcelona in the Europa League.
Rashford was walking gingerly as his left ankle appeared to be troubling him at that time.
On Rashford, Ten Hag told reporters during a press conference: "I don't know.
"The players are just coming in now. We need to do the investigations.
We did yesterday but it's too soon after a game. So we have to wait for the medical team now."
