Our right back limped off at the end of the first half in our 3-2 defeat to Southampton on Sunday and Unai Emery provided an update to the media.
"We are going to wait tomorrow and Tuesday, and Wednesday we are going play, and then Saturday also," our head coach said.
"We need every player. Bellerin has a small injury - he is going to be some weeks off I think.
"Sokratis is coming back and we will see how Mustafi and Kolasinac are, and it is good news Koscielny can be with us for the next matches.