Not sure if anyone have came across this but there was a story in the Four Four Two Magazine October 2012 edition stating that Sao Paulo hid Oscar from Fergie when he was only 15 y/o. United contacted them, sent Oscar invitations to train with them and offered a deal but Sao Paolo chose to hid him and told him to fly to Spain because in Brazil, a player can't sign a contract until's he's 16, which meant if Oscar had left then, the club wouldn't receive any compensation. Instead, Oscar flew to Albacete in Spain and was hidden there for about a month to hide him for big clubs and scouts that were interested in him.