Manchester United's players had a pre-arranged day off on Thursday after the 4-1 defeat at Como and were due back on Friday before Bournemouth visit on Sunday.
GOAL reported that Manchester United striker Benjamin Sesko could miss up to four months with a fresh injury setback, while Michael Carrick awaits clarity.
Como beat Manchester United 4-1 on 21 October, with Nico Paz scoring twice for the winners.
TEAMtalk reported that Ally McCoist criticised Michael Carrick's use of Manchester United's strikers and addressed links with Troy Parrott.
Michael Carrick confirmed several Manchester United absences before Wednesday's Champions League game at Como, while Matthijs de Ligt is fit again.
