Borussia Dortmund are interested in bringing Nuri Sahin, currently on loan from Real Madrid at Liverpool, back to the Signal Iduna Park - the club he left in 2011.
The Turkey international joined los Blancos after lifting the Bundesliga title with Dortmund, but struggled to establish himself in Jose Mourinho's team.
He moved to Anfield on loan at the start of this season, but after showing early promise he has since found his playing time limited, dropping behind Jordan Henderson in the Reds' pecking order.