https://yestino.com/entities/giannis-konstantelias-ff2be5Every event involving Giannis Konstanteliasenhttps://yestino.com/events/borussia-dortmund-fear-giannis-konstantelias-may-have-suffer-9fe267https://yestino.com/events/borussia-dortmund-fear-giannis-konstantelias-may-have-suffer-9fe267Sat, 29 Aug 2026 19:35:00 GMTBorussia Dortmund face an anxious wait over the fitness of Giannis Konstantelias after the Greek international suffered a potentially serious knee injury in Sa… Sources: Yahoo Sports