Real Madrid officially announced that 17-year-old Argentine midfielder Mastantono joined the team, and River Plate also officially announced the news and gave detailed transfer fee details.

Riverbed Announcement

On June 11, 2025, Franko Mastantuno and Real Madrid jointly implemented his termination clause and terminated his contract with Riverbed Club in advance. The player will officially join the Spanish club after the 2025 FIFA Club World Cup. The total transaction amount was 63.2 million euros, equivalent to 72.6 million US dollars, making it the largest transfer in Argentina football history. Riverbed Club will net €45 million ($51.7 million).

The remaining amounts are allocated as follows:

• 11.8 million euros (USD 13.6 million): Spanish tax authorities.

• 1.4 million euros (USD 1.6 million): Argentina Football Players Association.

• 900,000 euros (USD 1 million): Argentina Football Association Structural Fund.

• 3.6 million euros (USD 4.1 million): Act No. 510 of 2023.

• 500,000 euros (USD 600,000): other taxes.

Thank you, Franco, for your dedication and talent. We are very proud to see you growing in the club. I wish you all the best in the new stage after the Club World Cup!