The Brazilian missed training on Friday and has not been included in Quique Setien’s 18-man squad for the game.
The club have offered an update on his condition:
“Brazilian midfielder Arthur Melo has an ankle problem and is undergoing treatment with Dr.Ramon Cugat’s team and the player’s recovery will dictate his return.”
Source | FC Barcelona
Setien was asked about Arthur in his pre-match press conference and said the club do not know yet how long he’ll be out for. Let’s hope he’s back soon.