Arsenal are finalising terms on a deal with Valencia for centre-back Cristhian Mosquera.
As Mail Sport reported on Sunday, talks advanced over the weekend and the 21-year old has agreed personal terms with Arsenal.
He is expected to undergo a medical this week though the clubs are ironing out the final details on a £13 million fee with added bonus payments.
Arsenal have been looking to add a defender to compete with William Saliba and Gabriel Magalhaes.
Mosquera can play at both centre-back and right-back and will fill the gap in the squad left by the departure of Takehiro Tomiyasu, who mutually agreed to terminate his contract.