Borussia Dortmund coach Jurgen Klopp has remained coy on whether he will include midfielder Nuri Sahin in his starting lineup against Werder Bremen on Saturday.

The 24-year-old, who left Dortmund for Real Madrid in the summer of 2011, joined the German club on a sixth-month loan deal last week.

"Physically, Nuri's in very good shape, but he hasn't played that much," Klopp told reporters.

Dortmund are currently third in the Bundesliga.