Rashford scored twice against Liverpool on Saturday, helping United to a 2-1 win in his first league start in 2018.
"I read something, some quote from the worst manager in the history of the Premier League, Frank de Boer saying it's not good for Rashford to have a coach like me", said Mourinho, as he ridiculed the record of a coach who was sacked just four games into this Premier League season by Palace. I would say he was in the top five with more matches for two seasons.
"If he was coached by Frank he would be coached how to lose because he lost every game".
Furthermore, the signing of Romelu Lukaku has seen the Englishman deployed as a winger on numerous occasions, and De Boer does not believe Mourinho has the patience to allow Rashford the necessary room to develop.
Mourinho praised his player in the post-match press conference and admitted that the academy product had previously suffered with confidence issues. He's a player, he's very young, he needs games, but he's so talented.
He incurred the United manager's wrath by telling BT Sport that it's "a pity" Marcus Rashford plays under Mourinho after the England worldwide marked his first league start of the year with both goals against Liverpool.
"The best thing that can happen for a kid is to have experience and Marcus is having these experiences". He starts some and comes from the bench in others. "Analysing a performance for me is more than number of goals or assists, and for me I'm really happy with Marcus". "No, of course not but he's a player we trust and I told him that before the Liverpool match", added Mourinho. Not many were expecting him to start against Liverpool and he had a good match, not just about scoring goals.
"I am really pleased with everything".