Arsenal manager Mikel Arteta has confirmed that central defender David Luiz has suffered an ankle injury.
Luiz was back from suspension against Sheffield United at Bramall Lane in the FA Cup quarter-final.
But he only managed 54 minutes of the game that Arsenal won, coming off due to an injury.
And Arteta confirmed an ankle issue after the game.
He told BBC Sport: "It was his ankle.
"He will get it assessed tomorrow [Monday]."
