Borussia Dortmund chief Hans-Joachim Watzke has taken a dig at Nuri Sahin over his struggles at Real Madrid.

Watzke says Sahin is struggling in the 'environment' at Real.

He explained: "With us, ever player is fully integrated with his strengths and weaknesses. You can see in the example of Nuri Sahin what a player is capable of in the right environment. In another environment [Real Madrid], he finds it much more difficult."