Paul Pogba is a doubt for Monday's game, despite making his comeback in the shoot-out win over Rochdale in the Carabao Cup, and Phil Jones is out until after the international break, after being withdrawn at half-time on Wednesday night.
Anthony Martial appears to have little chance of facing the Gunners, AZ Alkmaar or Newcastle United, but Marcus Rashford may return before next month's pause for more Euro 2020 qualifiers.
In more positive news, left-back Luke Shaw is doing well in his recovery and could be available again soon.
“Any injuries?” he said on MUTV, in an exclusive interview with Stewart Gardner.