Real Madrid Make Another signing,
The 18-year-old signed for the LaLiga giants from Brazilian club Flamengo in a £25million deal last month.
Reiner was formally uneviled by Madrid, after playing at the South American Olympic qualification tournament, where he helped guide his country to Tokyo 2020.
He posed for photos on the pitch and with club president Florentino Perez.
“I am living a childhood dream.
“I want to be part of the great history at this club. Today is a day of great happiness for me. Hala Madrid!” Reinier said at the press conference.
He also described his move as a “dream come true”.