Nehuén Pérez has impressed in a loan spell at Argentinos Juniors, earning promotion into the first team squad at Atlético Madrid.
Atlético Madrid have confirmed Nehuén Pérez is to link up with the LaLiga side's first team squad.
The Argentinian centre-back moved to Atlético from Argentinos Juniors last July, signing a six-year deal, but rejoined the club on loan.
Atlético Madrid need cover at the back
Atlético, however, are preparing to bring Pérez into their first team after the ongoing South American Under-20 Championship.
Diego Simeone's side have struggled with defensive injuries all season, with captain Diego Godín sidelined by a thigh problem.
Godín has also been linked with a move to Serie A side Inter at the end of the season, when his Atlético contract is set to expire.
Atlético signed Álvaro Morata on an 18-month loan from Chelsea earlier this month despite protests against the deal from the club's fans, who called for youngsters to be given a chance instead.