Not trusting young players is a stick Mourinho has been beaten with since his first spell at Chelsea but a stat has been unearthed that will change your mind on everything you've heard about Rashford recently.
It appears as though they have instantly forgotten that the youngster was the Portuguese boss's preferred option at the start of the season, but it was his own poor form, coupled with the hard work and brilliant form of Anthony Martial, that saw him dropped in the first place.
No player has featured more times for United in Mourinho's time as manager than Rashford.
I heard the worst manager in the history of the Premier League, Frank de Boer - seven games, seven defeats, zero goals - saying that it was bad for Rashford to be managed by me because he would never play.
Mourinho also mocked de Boer and said if Rashford played under him he would "learn how to lose".
It's never a good idea to get into a war for words with Jose Mourinho. "I'm really happy with Marcus". Of course not but he is a player that we trust.
Mourinho confirmed Paul Pogba returned to training on Monday afternoon but admits he is unsure if the midfielder will be able to play a role against Sevilla after missing the win over Liverpool. "I don't feel we have any advantage in this moment".
YOU can lambaste Jose Mourinho for his - at times - pragmatic approach to football or if you disagree with how he deals with the press but one thing you cannot question is his approach to Marcus Rashford.
"I try to give the best to the kid, I have to be honest and give the credit to the people of the academy that was responsible for his formation". "I think we're not one of the best teams in the competition but when a team arrives in the last eight, anything can happen", he said.
"When you are in the last 16 it looks really, really far, but when a team gets in the last eight you start smelling the semi-finals".