Premier League scouts will often turn their eye to Borussia Dortmund when they're asked to comb Europe for the best talent available - and with good reason.
Some of the best players in recent years have come through the German side - whether they've started their careers there or have been signed by them. You only have to look at the likes of Robert Lewandowski, Marco Reus as examples.
This knack at spotting quality has come at a price, however. Teams around the world often queue up to take Dortmunds best players off their hands, and a flock of teams in England have snapped them up in recent years with mixed success.