"It's not my business to interfere with club managers, they have a hard job to do and they have big squads at the top six, huge competition for places".
He now returns to Old Trafford to begin a three-game suspension for a red card picked up 10 minutes after going on as a sub in their win at Burnley in the last game before this global break.
The forward is stuck behind Romelu Lukaku and Alexis Sanchez in the pecking order at the Theatre of Dreams but no outfield player has featured more under Mourinho than Rashford since his appointment in 2016.
"Speaking about Marcus, I think I can expect that Sunday I'm going to be highly criticised for not playing him", he said.
Jose thinks the world of Marcus.
'So I can imagine on Sunday I am going to be criticised for not playing Marcus but is not my fault, he's suspended, so probably you should remind them he is suspended and cannot play.
"He (Rashford) has still played a lot of football, although maybe not the continuous starts, and I'm really pleased for him that he leaves England full of confidence".
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Rashford was back at Manchester United on Wednesday, likely resuming life on the margins of English soccer's biggest team. Solanke is yet to feature for Liverpool this season while Loftus-Cheek has not started for Chelsea.
However, they don't play as many matches, so 21-year-old Calvert-Lewin, one of the most used of the Toffees' group of talented youngsters, has only been involved for 3,793 minutes. But for the Manchester United supporters is important they have the right idea of how things are in reality.
Southgate, the England manager, has publicly backed Solanke, saying that he has "faith" in a player who has been "outstanding at every age level" and is frustrated that he is not now an option due to his lack of minutes.
In his news conference before Saturday's league match at Watford (15:00 BST), Mourinho outlined his use of Rashford over the past two seasons.
"Yes he is (a special talent)", Southgate said of Rashford after seeing him score the only goal in Tuesday's friendly win over Switzerland.
The 20-year-old took the footballing world by storm when he debuted in 2015 under Louis van Gaal, but Mourinho's system does not suit him. "So I did it on objective", Mourinho said with a grin.
"The only situation we have to analyse is if you are going to play him when during the week he was not training with the team".