Ramazani was born in Burundi, but raised in Belgium and is believed to have had previous ties to Anderlecht before his family made the move to London several years ago.
Precious little is known about the teenager, but an image of him holding a United shirt at the club's Carrington training facilities was posted online by Belgian journalist Kristof Terreur.
Alongside the image, Terreur claimed Ramazani has signed a four-year deal with United.
He will now be left to continue his development in the youth ranks and the eventual hope will be that he and others can follow in the recent footsteps of players like Marcus Rashford and Angel Gomes.
Ramazani will be exposed to the 'United Way' which is something Under-18 coach Kieran McKenna spoke about when he was interviewed for the latest issue of Inside United.
"[The United Way] is something we emphasise to the boys, especially at this level, with a mindset of not taking a backward step but always looking to take the game to the opposition, to score goals and show their talents," McKenna explained.
"They've managed to do that for most of the time and it's something that will be reinforced to the next group coming in again. It is a thread the club is very proud of and something we want to continue."