Real Madrid have completed the signing of Sao Paulo's attacking midfielder Augusto Galvan, according to Globoesporte. The player will not wear Madrid's shirt until next year and could spend a season with Castilla as he is just 17 years old.

Per As' report:

The media outlet says Sao Paulo will receive one million up front for Galvan, who is 18 in March, with the rest —3 million— paid depending on his fulfilment of a range of objectives.

Diario AS has spoken to the player's camp, who were able to "99.9%" confirm the transfer.

Real Madrid have completed some promising signings for the academy teams over the last few years, like Casemiro —who is now an undisputed starter for the first team—, Martin Odegaard, Mink Peeters or Sergio Diaz.

It's clear that Galvan's true potential is unknown, but he should be capable of helping Real Madrid Castilla next season until the coaches figure out whether he has the quality to play for the first team in the future.