Arsenal are eyeing Real Madrid fullback Sergio Reguilon.
The youngster has been outstanding this season on-loan with Sevilla.
Reports in Spain claim Mikel Arteta is seeking to boost the Gunners' defensive ranks.
ABC Sevilla says Arsenal and Tottenham have made enquiries about the player along with Borussia Dortmund and Paris St Germain.
It's believed the Gunners' queries could be related to Bukayo Saka's current contract situation.