Real Madrid Castilla are reportedly eyeing Ghanaian centre-back Oscar Naasei Oppong as a key defensive reinforcement ahead of the upcoming season, according to sources including Marca and Tribuna.com.

The 20-year-old currently plays for Recreativo Granada, the reserve side of La Liga outfit Granada CF. His standout performances in the 2024–25 campaign — including a recent debut in the Segunda Division and 20 appearances across competitions — have caught the attention of Madrid’s scouting department.

Naasei has earned praise for his physicality, aerial dominance, and leadership — attributes that have led some to compare him to Real Madrid first-team defender Antonio Rüdiger.

His presence on the pitch has been particularly notable given his age, marking him as one of the most promising young centre-backs in Spain’s lower divisions.

With Castilla head coach Álvaro Arbeloa overseeing a major squad overhaul — potentially involving the exit of more than 15 players — defensive reinforcements are a priority.

Naasei has emerged as a top target, with Real Madrid reportedly considering a €1 million move, which they view as a bargain for his potential and long-term value.

Should a deal materialize, Naasei would not only bolster Castilla’s backline but could also position himself as a candidate for future elevation to the senior side, in line with the club's commitment to blending academy products with high-ceiling young talent from outside.

For Naasei, a move to Valdebebas would represent a major step in his career — and a potential gateway to the biggest stage in European football.