Sporting Lisbon rejected an €18million bid from Manchester United for Bruma, according to FIFA agent Marco Kirdemir, reports Turkishfootball.com.
The 18-year-old winger - who eventually joined Galatasaray in a cut-price €10million deal - was the subject of intense transfer speculation all summer, having attracted interest from a host of top European clubs.
Red Devils boss David Moyes was keen to bring the Portuguese U20 international to Old Trafford, but like a number of his reported targets, failed to close a deal for the player before the close of the transfer window.
Bruma ended up penning a five-year contract with the reigning Super Lig champions, linking up with Fatih Terim at the Turk Telecom Arena.
His former club, Sporting, will receive 25 per cent of any profit from Bruma's future sell-on; a complicated negotiation that Kirdemir was heavily involved with.
"A number of clubs wanted to sign Bruma as a free agent during his contractual disagreement with Sporting Lisbon," confirmed the FIFA agent.
"Mancheter City, Manchester United, Arsenal, Monaco, PSG and Real Madrid were all interested. However, Galatasaray didn't act in an opportunist manner and carried out negotiations through the club."
Having risen through the youth ranks at Estádio José Alvalade, Bruma went on to make 13 senior appearances for Sporting Lisbon in 2012/13, and drew comparisons with Real Madrid superstar Cristiano Ronaldo.
He also enhanced his burgeoning reputation at the U20 World Cup in Turkey earlier this summer, where he netted five goals in three appearances as Portugal were eliminated at the group stages.
"Sporting won the case which ruled that Bruma couldn't leave as a free transfer and Galatasaray were rewarded by the club's president [Bruno Carvalho] for the way the in which they conducted their business," Kirdemir continued.
"As a result Sporting president Carvalho rejected Manchester United's €18 million bid and accepted a lower offer from Galatasaray.
"Carvalho also underlined that Sporting would be doing further business and working together in future projects with Galatasaray following the transfer."