Fellow defender Sead Kolasinac is also surplus to requirements, while Arsenal are reportedly prepared to listen to offers for the versatile academy product Ainsley Maitland-Niles.
Crystal Palace and Wolves have been linked with the 23-year-old, who has five England caps.
Attacking midfielders Willian and Reiss Nelson are reportedly also available, having struggled for consistency under Arteta.
Willian arrived on a free transfer from Chelsea just last summer but scored only one goal in the Premier League.
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