Danilo is reportedly set to miss Nottingham Forest's next two games after suffering an injury against Brentford.
The Brazilian had to be substituted off in the second half, leaving Forest down to 10 men for the final minutes at the Gtech Community Stadium. Danilo had initially tried to carry on after going down but was later forced to make way off the pitch.
Head coach Steve Cooper said after the game: "Danilo is a fantastic athlete, very fit and resilient. He was the one guy we weren't worried about keeping the effort levels for the whole game, so to see him go down and come off was just something we didn't expect."