The Serie A match in the San Siro had been overshadowed by a racism storm after Italian sports daily Corriere dello Sport's controversial headline.
Manchester United defender Chris Smalling has travelled to Italy to complete a loan move to Serie A club AS Roma.
Jose Mourinho admitted Manchester United had given him an FA Cup semi-final selection dilemma after their 2-0 win at Bournemouth on Wednesday.
Paul Pogba, back after over two months out with a hamstring injury, carved out a superb 37th-minute equaliser for Manchester United.
Jose Mourinho made the strong statement following injuries to key central defenders Chris Smalling and Phil Jones on England duty.
Defending champions Manchester United advanced to the fifth round of FA Cup after defeating Wigan Athletic 4-0.
Chris Smalling, Daniel Sturridge and Dele Alli are expected to be dropped by Sam Allardyce for England's 2018 FIFA World Cup qualifying clash vs Slovakia
Manchester United defender Chris Smalling's house caught on fire from a hot tub but there was nobody at home at the time of the incident.
Chris Smalling has made 147 appearances for Manchester United, scoring nine goals, and has won two Premier League titles with the club.
Manchester United F.C. hit back through Ashley Young, Marouane Fellaini, Juan Mata and Chris Smalling to register a sixth successive league win after Sergio Aguero gave Manchester City F.C. an eighth-minute lead at a blustery Old Trafford.