Sports 8 sources · over 2 days Latest coverage 31 Aug 2026, 3:26 pm UTC

Giannis Konstantelias Scores, Then Suffers ACL Tear in Dortmund Debut Win

Borussia Dortmund's promising Greek signing Giannis Konstantelias scored in his Bundesliga debut against Hamburg but suffered a confirmed ACL tear, sidelining him for months and forcing Dortmund to seek a replacement.

By Hannah Lindqvist · First published 29 Aug 2026

In brief

  1. Giannis Konstantelias suffered a confirmed ACL tear in his left knee during his Bundesliga debut for Borussia Dortmund.
  2. The injury occurred shortly after he scored a goal against Hamburg on August 29, sidelining him for several months.
  3. Dortmund is now actively seeking a replacement as the transfer deadline approaches, creating a significant gap in their lineup.
  4. Support for Konstantelias has poured in from fans, teammates, and the national team as he begins his recovery.
  5. The club's CEO and coach have described the injury setback as significant, impacting their season plans.
Giannis Konstantelias Scores, Then Suffers ACL Tear in Dortmund Debut Win
Source: Proto Thema

Timeline · 6 moments

6 moments Open the full timeline →

Konstantelias scores and is injured in Dortmund debut

in.gr ↗

Konstantelias leaves pitch with knee injury after scoring

Proto Thema ↗

ACL tear confirmed, Konstantelias out for months

Proto Thema ↗

Dortmund seeks replacement after Konstantelias injury

NewsIt.gr ↗

Konstantelias injury forces Dortmund to change transfer plans

Proto Thema ↗

Dortmund weighs options as transfer window closes

DIE WELT ↗

How it started

Borussia Dortmund began their Bundesliga season with high expectations, especially after signing young Greek talents Giannis Konstantelias and Konstantinos Karetsas. Konstantelias joined Dortmund from PAOK in August after a much-discussed transfer, with fans in Greece expressing strong emotions about his departure. The club hoped that these new signings would inject energy and creativity into their squad.

How it unfolded

On August 29, Dortmund hosted Hamburg for their Bundesliga opener. According to in.gr and Ta Nea, Konstantelias scored his first goal for the club, giving fans a glimpse of his potential. However, the match quickly turned bittersweet. Shortly after halftime, Konstantelias left the field with a knee injury, as reported by DIE WELT and Proto Thema. There were immediate fears of a serious problem, with Dortmund's coach Niko Kovac expressing concern about a possible ACL tear, according to DIE ZEIT and DER SPIEGEL.

Medical assessments followed quickly. By August 30, Proto Thema and DIE ZEIT confirmed the worst: Konstantelias had suffered a torn anterior cruciate ligament in his left knee. The injury is severe, and he is expected to be out for several months. NewsIt.gr and L'Équipe reported that Dortmund now faces the rest of the season without one of their key new players, significantly affecting their plans.

Support poured in for Konstantelias from the city of Hamburg and his national team, as covered by Ta Nea and in.gr. Meanwhile, club officials and teammates expressed their disappointment and promised support during his recovery. The injury also forced Dortmund to reevaluate their transfer strategy with the window closing soon, according to Proto Thema and DIE WELT.

Where it stands

Giannis Konstantelias is now sidelined for several months with a confirmed ACL tear. Borussia Dortmund must manage without him for the majority of the season. The club is actively searching for a replacement as the transfer deadline approaches, and the injury has created a major gap in their lineup. The setback has been described as significant by both the club's CEO and coach, but the team has publicly committed to supporting Konstantelias through his recovery.

What to watch

Dortmund is racing to find a suitable replacement for Konstantelias before the transfer window closes. The club's upcoming decisions in the transfer market and how quickly they can fill the gap left by their injured star will shape their season. Fans and analysts will also be watching for updates on Konstantelias's rehabilitation progress.

Written from 8 outlets' coverage of this story. Every timeline entry links to the original report.

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