Rayo Vallecano have snapped up Real Avila fullback Cauet Werner.
The 20 year-old joins in a free transfer and will initially be registered with Rayo B.
Werner's contract will run to the end of the season.
The defender is the son of former Inter Milan and QPR goalkeeper Julio Cesar.
Werner had 18 months with Real Avila, having been snapped up from Portugal's Estrela.