The Spanish midfielder was out for a month before his return to training earlier this week, but he picked up another injury and could face another lengthy spell on the sideline.
The medical staff is yet to confirm the type of injury and the recovery period. Arteta has been suffering from back to back injuries since last year’s summer. It is expected that he could have a calf problem again.
Meanwhile, Welsh midfielder Aaron Ramsey has also joined the injury list after suffering an injury during a Champions League game against German giants Bayern Munich few days ago.
Alex Oxalade-Chamberlain is likely to take Ramsey’s role in the starting eleven tomorrow when Arsenal take on Everton at Emirates Stadium.