Gladbach defender Jan Leszczyński injures knee in training

Borussia Mönchengladbach have been hit by another injury concern after centre-back Jan Leszczyński injured his knee during training on Friday, according to Sky Germany.

The seriousness of the injury remains unclear. The club's medical staff are expected to carry out further examinations, which should establish whether the 19-year-old can return soon or will be sidelined for longer.

Leszczyński is likely to miss Sunday's home match against TSG Hoffenheim while the club assesses the problem. His absence would add to the pressure on a Gladbach squad already dealing with a difficult start to the season.

The young defender has made three appearances for Gladbach this season, including 80 minutes against Mainz and a full match against Köln.