Real Sociedad has a strong interest in Fábio Silva, a 23-year-old Portuguese forward who wants to leave Borussia Dortmund. The forward joined the German club last summer for 27 million euros and had a limited impact, making a permanent transfer almost impossible for most interested Spanish clubs. Real Sociedad's sporting management has reportedly been targeting the player for a long time, and Celta de Vigo, Espanyol, and Villarreal have also been recently linked with a move.