The Chelsea star was allowed leave from Brazil's Granja Comary training complex for the imminent birth of his daughter and could be replaced by Willian on Friday
The Chelsea midfielder was allowed leave from the camp this week for the imminent birth of his daughter, Julia.
The Selecao meet Serbia at the Morumbi in Sao Paulo on Friday for what will be their last Gillette Brasil Global Tour friendly before the World Cup and Felipao hopes the 22-year-old will be available for selection.
"It depends on the conversation I have with Oscar,” said Scolari. I believe he will arrive back happy and say he is ready to play.
"The idea is to start with the team that will start the World Cup, and that includes Oscar. But if he can not, there are people can replace him”
The potential replacement would appear to be Willian, who has impressed in training this week and was singled out for praise by his coach.
“If Willian has to start the game tomorrow, or against Croatia, to me it doesn't change much," added Felipao.
“He also adds some new features to the team. Willian is very fast, can dribble, and he strikes the ball very well."
Brazil open their World Cup campaign against Croatia at the Arena Corinthians on June 12.