Barcelona are wrapping up a deal for Argentinos Juniors prospect Roman Vega.
TyC Sports says the 18 year-old left-back is set to sign for Barca Atletic.
The two clubs are currently finalising terms, with only a few small bureaucratic issues needing to be settled.
The Argentina U20 international can also play as a centre-half.
Vega, who has already played three games with the Argentino Juniors first team, will be a third new signing for Barça Atlètic. He will follow the additions of defender Álvaro Núñez, from Athletic Bilbao, and goalkeeper Nil Ruiz, who arrives from the Damm.