Borussia Dortmund defender Niklas Suele will be sidelined for about two months after picking up a calf muscle injury in Sunday's pre-season friendly against Juventus, the Bundesliga club said on Monday.

Borussia Dortmund’s defensive worries deepened Monday with central defender Niklas Süle expected to be out for two months with a right calf injury sustained during a friendly game against Juventus. Süle suffered a muscle injury and had to go off just before halftime during Sunday’s match against the Italian team.