Arsenal are reportedly open to selling an out-of-favour defender in January amid interest from three Italian clubs.
The Gunners have enjoyed a strong start to the Premier League season, with Mikel Arteta's defensive unit impressing to date.
Arsenal bolstered their defence over the summer with the addition of Italian international Riccardo Calafiori, with the £42m deal pushing another star further down the pecking order.
Italian Milan are reportedly one of the Italian clubs seeking to benefit from Takehiro Tomiyasu's situation at the club.
The Japanese defender joined the Gunners from Bologna in 2021 but has struggled with injuries throughout his time at the Emirates.