Mikel Arteta has made trimming Arsenal's squad his priority for the January transfer window, admitting the club "cannot sustain" the number of players currently on their books.
The Gunners brought in five new first-team players during the close season but only made one sale, with back-up goalkeeper Emiliano Martinez heading to Aston Villa.
A number of big names, such as Mesut Ozil, Shkodran Mustafi Sokratis Papastathopoulos and Sead Kolasinac have subsequently struggled for minutes this term or been frozen out.
On Thursday, the latter secured a loan move back to his former club Schalke.
And while Arsenal continue to be linked with the likes of Isco and Joan Jordan, Arteta is keen to offload more players before bringing in any more new faces.