De Boer, who was sacked as Palace manager last September after failing to muster a goal or a point over the course of four games in charge, said it was a "pity" the 20-year-old had Mourinho as a manager, as the Portuguese would deny him the game time he required.
And a crucial aspect of Rashford's immediate impact came from the fact Mourinho took him out of the spotlight for some time. "Marcus is very young and needs games, but he is so talented and you want to see him playing every week".
"Does he play every match from the start?"
Manchester United, who are second in the Premier League table after Saturday's win, are now preparing for their crunch clash against Sevilla in the last 16 of the Champions League on Tuesday night.
Those words incurred the wrath of Mourinho, who dubbed De Boer the "worst manager in Premier League history" and now the club have come to their manager's aid with the supposed "myth-busting stat".
Here, we take a look at some of the factors that may influence whether Mourinho gives the young forward more opportunities. He has got good people around him, and they always assure him he is in a good place at the moment and what kid wouldn't want to be at Manchester United at the moment?
"What he was saying was it was not good for Marcus Rashford to have a coach like me because the most important thing for me is to win".
Despite being used in all-but three league games, the 20-year-old has struggled to cement a place in United's first XI this season, starting only 13 of his 27 Premier League appearances. Mourinho said he did not know whether the midfielder would be available but Pogba had trained after the open part of Monday's session closed. "That's pretty much where I'm at". "In football you are going to be up, you're going to be down". When a team gets into the last eight, the feeling is you are among the best and anything can happen. "It's kind of been sorted out but we're still talking about it so there is nothing to totally confirm yet", he said.