could be without and for the must-win clash against Bayern Munich.
The Germans visit Old Trafford on Tuesday night with United needing a win, and a draw between Copenhagen and Galatasaray, in order to progress to the last-16.
United were booed off on Saturday as they lost to Bournemouth at the Theatre of Dreams.
Martial was removed after an hour against the Cherries to jeers from the home faithful, who were crying out for the introduction of Rasmus Hojlund.
But United could be without the Frenchman, as well as Rashford, after the pair missed out on the last training session before the game with illness.
Alejandro Garnacho and Antony would be expected to start in the pair’s absence, while Hojlund would be reinstated to the attack.
Bayern will be without Serge Gnabry for the trip after he suffered a thigh strain during a 5-1 defeat to Frankfurt on Saturday.
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