Referee Martin Atkinson only issued a yellow card for the dangerous tackle, which forced Fellaini off at half-time, but Mourinho opted not to pass judgement on the non-call from the match official.
“I know what you know. I know what everybody knows,” he told MUTV.
“Even when I was speaking to Sky, it was one of their questions, so we all know that.
“But in the end, it’s the result that stays, and when you lose 4-0, to come and speak about the referee, it looks like you are trying to get excuses.
“I just hope that the press does the job in terms of analysing that situation but it’s not for me to speak about.”