The Gunners started their top-flight campaign with back-to-back wins but squandered a late lead against Fulham .

They will be aiming to return to winning ways tomorrow, but ahead of the game, the club have suffered a huge blow.

In an update today, the Ghanaian FA have confirmed that Partey picked up an injury in training in Saturday's session.

They are monitoring his situation, but he has been left out of the final African Cup of Nations qualifier this month.

The news is a massive blow for the Gunners, who will need to cope without Partey for the Red Devils meeting tomorrow.

Partey has started at right-back in the first three games, but he has moved into midfield when the Gunners have had possession.

The experiment has been a mixed bag for the Gunners, and the game plan will need to change with the setback for Partey.

Mikel Arteta could play with a conventional four man backline tomorrow with Ben White operating from right-back.

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