The youngster is currently in England for the Olympics and United are confident of reaching an agreement with his agents.
Sir Alex Ferguson is confident that the 19-year-old will sign, after the two clubs finally reached an agreement.
Inter Milan and Chelsea have previously shown an interest in him, but according to The Metro, it is United who have won the race to sign the attacking midfielder.
It is likely that any deal won't go through until after the Olympics, with Brazil being favourites to win the gold medal.
Source: DSG
