And on Monday, Arteta insisted Tuesday was going to be when the extent of the injury was revealed.
“We don’t know how bad he is. He’s getting a scan this morning,” the Spaniard said.
“We didn’t look after the game because he was in a lot of pain but yesterday he tested it a little bit better, so let’s hope.
“We have a scan today so let’s hope it’s not as serious and we can have Gabi back really soon. We will know more tomorrow, certainly.”
Arsenal also have defender Gabriel and midfielder Thomas Partey available for selection.