Borussia Dortmund have suffered an injury blow ahead of their return leg against Chelsea in the Champions League.
Dortmund celebrated a 1-0 victory over the Blues at Signal Iduna Park last week in the UCL round of 16. The second leg is scheduled for March 7 at Stamford Bridge.
Karim Adeyemi, who scored the only goal in the first-leg, has tore a muscle fiber during Sunday's game against Hertha Berlin and will be unavailable for about three weeks, the club confirmed.