Borussia Dortmund are reportedly preparing to make a move for Atletico Madrid forward Diego Costa at the end of the season.

Last season's Champions League finalists are expected to lose Robert Lewandowski next summer when his contract comes to an end.

According to AS, Dortmund are preparing to replace the Polish international with Costa, who has scored 15 league goals for Atletico this season.

However, only a sizeable offer would be considered by his Spanish club, who are currently second in the La Liga table, level on points with leaders Barcelona.