Valencia centre-back Cristhian Mosquera has agreed personal terms with Arsenal, with a move to the Premier League club getting closer.
BBC Sport previously reported that Arsenal were in talks to sign the 21-year-old but now another element to the deal has been completed.
The Gunners have been looking to add a young defender to their squad 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.