Brazil coach Luiz Felipe Scolari won't gamble with the fitness of Chelsea defender David Luiz tonight.

Luiz is a doubt for tomorrow's friendly against England with a calf injury.

"Regarding David Luiz he will (have to) pass another exam with our physios, then we will decide whether he will play or not," Scolari told a press conference at Wembley.

"We will not take any risks with him."