Answer
The answer is Feyenoord. In 2007, Nuri Şahin joined Feyenoord on a year-long loan from Borussia Dortmund. Şahin had previously broken through at Borussia Dortmund, making his debut at 16 and becoming a regular starter by 2007. The loan move to Feyenoord was seen as an opportunity for Şahin to gain more playing time and experience in a different league.