Arsenal defender Mikel Arteta says there is a chance David Luiz could face Tottenham Hotspur on Sunday.
Luiz suffered a nasty head injury last weekend after colliding with Wolves striker Raul Jimenez.
A club statement on Wednesday stated Luiz would miss Thursday's clash with Rapid Vienna in the Europa League.
But Arteta is hopeful the Brazilian will available for the north London derby.
He told a pre-match press conference: "I think he will be fit to play if the scar is healing properly and he is comfortable heading the ball, there shouldn't be any problems."
Arsenal caused some controversy by leaving Luiz on the pitch after his collision with Jimenez.
He was eventually substituted at half-time, with Arteta adding: "Some people can have the perception of whether he should have continued or not, thankfully we have one of our leading authorities in this country, which is Gary O'Driscoll, our doctor, who has massive experience in not only football but rugby as well, and he knows exactly what to do.
"He did all the testing, he followed all the protocols and we were very comfortable for him to carry on playing."