"But wherever the manager calls upon me, I will go out there and give 100 percent and look to play well, which I think I've done this season".
De Boer, who lasted only 77 days as Crystal Palace manager after losing his first four league games in charge with no goals scored, said in an interview on BT Sport that it was "a pity" Mourinho was Rashford's manager because he was not getting enough chances. United enter the game on the back of a morale-boosting run of three consecutive wins in the Premier League.
Sevilla's only dalliance with the European Cup quarter-finals came in 1958 and Montella is hoping to make history at Old Trafford, having put in a promising display as the first leg ended 0-0.
"You could see that Valencia are risky on the counter, but Sevilla did not defend against that in their 2-0 defeat against them in La Liga on Saturday".
"We are still in the competition and we have the second leg coming up", he said.More news: Vu 4K UHD Android TVs launched in India
It was an important afternoon at the bottom of the table too, with West Ham United slipping to a damaging 3-0 home defeat by Burnley to leave them three points above the relegation zone.
However, even without the injured Paul Pogba, it was United who started on the front foot, adopting a more direct style with Romelu Lukaku the target and the Belgium striker was influential in both Rashford goals. "Now I have only one name and that is Sevilla, I know is very hard to go through".
"We are a strong team once we take the lead".
Jose Mourinho believes Manchester United's "live or die" meetings with Sevilla and Brighton and Hove Albion this week will have a greater impact on his side's season than the weekend's victory over Liverpool. The 35-year-old, from Willemstad, has already handled four Champions League matches this term - including games involving Liverpool, Chelsea and Celtic during the group stage.More news: Seattle U to face OR in NCAA women's tournament
However, Rashford insists he is learning more on the training ground from his boss than on the pitch on matchday.
"I think [fourth official] Martin Atkinson, after so many years of this, made the right decision".
"And I remember him clearly in the meetings in the dressing room, at halftime, eating every word, listening to everything".
"In football, you are going to be up, you're going to be down".
"Right now, I'm probably not learning the most on the pitch", Rashford said.More news: Nuance Investments LLC Acquires 123744 Shares of Johnson & Johnson (NYSE:JNJ)