Atletico de Madrid received 8M€ for the player, an amount they will add to the money they are attempting to get together & guarantee that Forward Falcao can stay for next season.
In an attempt to gather up funds I don´t discount that another Atletico player Salvio will soon be the next to move as Benfica is knocking hard on his door, but this in another post.
A real pity personally as an Atletico de Madrid fan, to see this 23 year old player leave. Dominguez is an International & is destined to end up soon as a full-time defender for the Spanish National Team. Plus the man is a "home grown" product of the Atletico de Madrid youth teams & felt the colours strongly acting as Captain in his last games.
Atletico has signed from Getafe experienced defender ( free from contract ) CATA DIAZ, but its not the same as having a home product on the team.
From here I wish Dominguez all the luck in German Football. Borrusia will be happy as there is talent in the man & good Football.