Shkodran Mustafi's agent and father, Kujtim Mustafi, has said the defender and Arsenal need to work on a transfer away from the north London club.
Kujtim Mustafi told Sky in Germany (h/t Joe Tanner at Sky Sports) that the best option is for the defender to part ways with the Gunners after three years.
"Shkodran had a great time with Arsenal. We still have a contract for two years and can imagine to stay in London," he said. "However, the best for both sides is probably to work on a transfer.