Borussia Dortmund full-back Lukasz Piszczek has picked up a hip injury.
The 30-year-old suffered the complaint during yesterday's training session ahead of tonight's Europa League clash in Norway against Odd.
"He injured himself at the end of yesterday's training. We are extremely upset and have to wait and see if it's going to be something long lasting," head coach Thomas Tuchel told the club's official website.
The 30-year-old Poland international has had two hip operations since 2013.