According to David Horrocks, his first coach at renowned south Manchester junior club Fletcher Moss Rangers, United's training programme introduced by former coach Meulensteen convinced Rashford about the move.
"Like most talented kids, Marcus wasn't just scouted by one club. He went to the Moss Side development centre at United and City knew he was going well so he also trained at their academy at Platt Lane which was close to his home in Fallowfield," recalled Horrocks to the Daily Mail.
"City offered him a chance to play for the club and said they'd build their team around him. United were worried about losing out because City was so convenient geographically. So they called me to see if I could drive him into their training ground at The Cliff on a Sunday morning.
"United had a programme to develop individual skills. The ethos was laid down by Meulensteen and all the coaches followed it. It suited Marcus down to the ground because he was allowed to have the ball and express himself rather than just pass-pass-pass," added Horrocks.
"Boys can't sign a piece of paper with any club until their ninth birthday. It was around that time Marcus decided he wanted to go to United. In his words as I drove him to The Cliff, he could see himself being a better footballer under their programme."