Real Madrid have reached an agreement to sign full-back Theo Hernandez from city rivals Atletico Madrid on a six-year deal, subject to a medical.
The 19-year-old, whose brother Lucas Hernandez plays for Atleti, impressed during a loan spell with Copa del Rey finalists Alaves last season.
Hernandez was under contract until 2021 with Atletico but, in a statement, the club said the French youngster rejected "several" offers to renew terms, along with advances from other European clubs.
"[Hernandez was] stating repeatedly his firm desire to play for Real Madrid," the statement read.
A fee has not been disclosed for the transfer, although Madrid sports newspaper Marca reported it was worth in the region of EUR26million.
Hernandez will be presented at the Santiago Bernabeu on Monday after undergoing his medical.
He played 38 times in all competitions for Alaves last term but never made a competitive appearance for Atletico despite joining the club's academy setup as an 11-year-old.