The Chelsea defender has missed his side's last three matches because of a calf injury.
As a result, Scolari has confirmed that he will only be under consideration for a place in the match squad if he is able to pass a fitness test with the medical staff.
"Regarding David Luiz he will [have to] pass another exam with our physios, then we will decide whether he will play or not. We will not take any risks with him," the coach told reporters.
Luiz, 25, has made 16 appearances at senior international level.