The Brazilian Santana is signing for Schalke 04 this summer and so the Ruhr outfit have moved to bring in Papastathopoulos from Werder Bremen.
“We are delighted that Sokratis has decided to join Borussia Dortmund. He is a flexible player capable to play in a variety of positions in defence who we believe has tremendous potential,” Dortmund sporting director Michael Zorc said.
