Junior is impressing at the South American Under-17 championship this season with the 16-year-old the tournament’s top scorer to date with scouts from both La Liga clubs watching him with regularity.
Former Flamengo president Kleber Leite revealed last month, however, that Manchester United had already held talks about bringing the teenage forward to Old Trafford in the future.
Leite told the Independent: “[Luz] told me that he was contacted a while ago by a representative of Manchester United, who wanted to discuss the possibility of them having priority for a transfer.
“The talks didn’t get far, because Fred Luz told them plainly that future discussions would depend on the immediate payment of a sum that would give them priority among offers of equal value.
“At that point, the Englishman, who thought it was going to be a piece of cake, left and didn’t return.”