The Turkish international began the 2012/13 season on loan at Liverpool. But after a few tough months in England, he was sent back to Real Madrid and then went to Dortmund on loan and has remained there for the past 18 months.
Now it seems after leaving Dortmund in 2011 for 10 million euros, he will now rejoin for a figure believed to be around 7 million euros which is a fee both teams will be happy about.
Sahin has made 44 appearances for the German side in the Bundesliga since joining on-loan and will join as the Signal Iduna Park outfit as the 3rd signing of the summer with Ji Dong-Won and Adrian Ramos who was announced yesterday as a Dortmund player come July.