But it is now expected Fabregas will be available for the Gunners, although possibly not fully fit, when the club at which he started his career arrive.
Arsenal are desperate to have their influential on-field leader in their team for the meeting with Pep Guardiola's defending European champions.
Fabregas' father, Francesc, said in The Sun: "The blow hurts a lot less now and it seems to be just a knock, nothing more serious.
"I think Cesc will play. Although he may not be at his best he will do everything he can to be part of it."
Arsenal v Barcelona. Click here to bet.