Borussia Dortmund defender Neven Subotic has confirmed he has torn two of the anterior cruciate ligaments in his knee.
Subotic sustained the injury during Dortmund's 2-1 defeat at Wolfsburg in the Bundesliga on Saturday as he landed awkwardly following a first-half collision with Ivica Olic.
The Serbia international defender was replaced by Sokratis Papastathopoulos and taken for an MRI scan to reveal the full extent of the injury.
Dortmund coach Jurgen Klopp said after the game that it looked like Subotic may have severely damaged his knee, and the 24-year-old took to his official Facebook page to confirm the extent of his problem later on Saturday.
"Sadly I did not get good news regarding my injury," he wrote. "2 of my ACL's are torn. But no worries, I will be back stronger."
Dortmund's defeat was their second of the season and leaves them four points behind leaders Bayern Munich after 12 matches.