Although still comfortably United's top scorer with 12 goals to his name in 20 appearances across all competitions to date, the Belgium worldwide, a £75m ($100.3m) summer arrival from Everton, has now netted in only one of his last 10 appearances at club level - a late effort in the 4-1 comeback defeat of Newcastle United on 18 November.
The £75million forward will not face any retrospective action for the incident during United's 1-0 win.
"In the last minute he was fighting and running back like he was in the first minute, so I think it is also a mentality question", Mourinho said of Lukaku. "Some are capable of going to the limit of their efforts but others, even with a lot of talent, are not able to".
Pakistan calls in army as Islamabad protests turn violent
The government also shut down Facebook , Twitter , and YouTube in Islamabad and Rawalpindi to block coverage of the operation. A mob attacked former Interior Minister Nisar Ali Khan's house in Rawalpindi and broke the main gate of his house.
"Unfortunately, not every player is the same".
Manchester United are on the brink of losing Romelu Lukaku to a potential three-game ban after a footage emerged of him kicking Brighton defender Gaetan Bong in the groin, some sources have told ESPN FC. So Romelu, for me, was fantastic.
Watford also face a testing run of games that includes a visit from Tottenham and a trip to fellow overachievers Burnley, but Silva has only eyes for United for now.
"We had 5 games to watch at 3pm. It will be a tough game for us but we can play with confidence".