Competition is set to be fierce for the young star, who may be shifted forcibly due to the Portuguese club's financial situation, and United in particular are looking to use the good connections they've forged in Portugal via the transfers of Cristiano Ronaldo and Nani.
In fact, some believe Bruma to be the very next Ronaldo, and while that's up for debate, he is definitely the most talented kid in the Liga Sagres right now.
The Guineau-Bissau-born winger, named Armindo Tué Na Bangna, has burst onto the scene this season since Jesualdo Ferreira took control of the team in December.
When you watch him, it becomes immediately evident that he's an athletically gifted boy. He boasts good speed over long distances, extreme quickness in tight areas and general agility Robinho would be proud of.
As a winger, these are all very useful traits, and combined with his good feet and decent technique, he's had the upper hand (athletically) on juniors his age for a while.
His goalscoring record for Sporting B was decent—six goals in 25 matches—and he appears comfortable playing on either wing, though he is predominantly right-footed.
He made his first-team debut in a 1-0 loss to Maritimo, but then scored his first senior goal in his second start against Gil Vicente. What a strike it was.
Whether or not he is the next Ronaldo is a question that will take a few years to answer, but what we can say with authority now is that he's the best winger to emerge from Portugal since CR7 left Sporting himself.
Much like the Real Madrid star on his arrival at Old Trafford, Bruma is a skinny, small-statured boy. But he's only 18 and clearly has the power in his legs and balance in his body to ride challenges and become stronger.
Sporting are selling their best assets because they're in crisis: there may never be a cheaper way to grab a potential star of the future.