Giannis Konstantelias will miss "several months" of the season with a torn anterior cruciate ligament (ACL), Borussia Dortmund have confirmed.Greece international Konstantelias made a goalscoring debut for Dortmund as they overcame Hamburg 2-0 in their Bundesliga opener on Saturday.The 23-year-old, who was a €30m arrival from PAOK in the close season, went down with a left knee injury and was replaced by Marcel Sabitzer in the 54th minute.Dortmund revealed on Sunday that Konstantelias had suffered ACL damage and would be sidelined for an extended period.BVB managing director of sports Lars Ricken said: "This news hits us hard, because Giannis has already shown in a very short time why we see him as a great player for Borussia Dortmund."For now, however, his and our focus is on his recovery. Giannis has our full support."Some difficult news to finish out the week.Giannis Konstantelias has suffered a torn cruciate ligament in his left knee and will be sidelined for several months.The 23-year-old was forced off in the 52nd minute of his Bundesliga debut against Hamburg after going down… pic.twitter.com/0MlVdE4YN1 — Borussia Dortmund (@BlackYellow) August 30, 2026 The post Dortmund’s Konstantelias out for ‘several months’ with ACL tear appeared first on SoccerNews.