The 36-year-old has been restricted to four appearances this campaign due to an irregular heart rhythm, which forced him to have surgery in November.
However, with the formation now suiting the former Juventus midfielder, injury is keeping him out of the team meaning that Jose Mourinho has had to fall back on the services of the youngster Scott McTominay.
Rashford scored twice in his first Premier League start of 2018 against Liverpool, but his manager still substituted the 21-year-old England forward 20 minutes from time as he looked to make the game safe.
"It's just determination, working hard and keeping my feet on the ground in training and keep on proving people wrong", he said.
On Manchester United's end, Jose Mourinho announced that the squad is not going to have too many changes in comparison to the side that defeated Crystal Palace and Liverpool this past week. latan Ibrahimovic and Ander Herrera remain out, as well as the trio of defenders of Phil Jones, Daley Blind and Marcos Rojo.
The 2-1 win over Liverpool at the weekend saw Pogba miss out through injury, which he suffered last Friday in training and it has now been confirmed that he has missed the open training session on Monday morning.
Rashford also insisted that he didn't need to be reassured by his manager when he was struggling for playing time, saying: "He doesn't have to (speak to me)".
"Where he was saying it is not good for Marcus Rashford to have a coach like me because the most important thing for me is to win".
"I'm really happy - probably I think that Gareth Southgate doesn't mind that".
"We have eight more games and 24 points to play for". Vincenzo Montella's men have won two and lost as many games in the last three weeks - a sequence of results that has left them lagging well behind in the race to finish inside the top four.
Alternatively, Mourinho can buy a few experienced players so as to give players such as Marcus Rashford, Luke Shaw or Victor Lindelof a source of learning. The start of the month saw the Reds come from behind to defeat defending Premier League champions Chelsea at home in a 2-1 win. It is because of these players that the first 11 could not be rested often even in easier matches.
Pogba cost United $116 million in 2016, a world-record fee at the time.
However, if Conte plays the same way as he did at Manchester City, which I think he might, they will have no joy because they'll fail to get out of their own half again.