Borussia Dortmund sweating over Konstantinos Karetsas

Just when it seemed like the squad is back to full strength again, aside from the long-term injuries, Borussia Dortmund have been dealt another major injury concern.

Konstatinos Karetsas twisted his ankle during their 0-0 draw with Union Berlin on Saturday, as staff had to escort him out of the game with the Greek visibly in pain.

He came off the bench in the 62nd minute and lasted only eight minutes as the player sustained the knock while attempting to clear the ball away from Berlin's Rani Khedira near the byline.