# Konstantelias injury and Dortmund transfer developments > Live situation record from CLSTR: https://clstr.news/situations/borussia-dortmund-transfer-activity-2026 > Updated: 2026-08-30T06:07:46.000Z. Sources: 162. Developments: 22. Giannis Konstantelias has officially completed his transfer from PAOK to Borussia Dortmund, marking the most expensive sale in the Thessaloniki-based club’s history. The deal includes a guaranteed €26 million, with performance-based bonuses that could bring the total package to approximately €29–32 million. The 23-year-old midfielder signed a contract extending his stay in Germany until June 30, 2031. In his Bundesliga debut against HSV, Konstantelias scored in the final moments of the first half following an assist from teammate Konstantinos Karetsas, contributing to a 2-0 victory. While Karetsas was named Player of the Match for his performance, the win was overshadowed by a serious injury to Konstantelias. Medical evaluations have confirmed that the midfielder suffered a cruciate ligament rupture. Following the diagnosis, Dortmund executives Lars Ricken and Ole Book are working against a tight transfer deadline to find a replacement. The club is reportedly exploring a loan deal for 19-year-old Arsenal midfielder Ethan Nwaneri. Konstantelias is expected to undergo surgery and rehabilitation in Dortmund. The move has previously sparked backlash from PAOK ultras, who protested at Toumba Stadium demanding the deal be canceled. Regarding his recent absence from the Greece national team, federation president Makis Gagatsis noted the player chose to abstain for personal reasons related to his wife’s pregnancy, emphasizing that the door to the national team remains “open at any moment.” ## Claims - In his last season with Genk he made 34 league appearances, provided 11 assists and scored two Europa League goals. (disputed by 17 sources) - Konstantinos Karetsas signed a five‑year contract with Borussia Dortmund. (disputed by 14 sources) - Karetsas made 49 appearances for Genk last season, scoring three goals and providing 14 assists. (disputed by 7 sources) - The agreement includes a 10 percent sell‑on clause on any future transfer of Karetsas. (disputed by 6 sources) - PAOK retains a 17.5% sell-on clause for any future transfer of the player. (disputed by 3 sources) - Giannis Konstantelias has signed a four-year contract with Borussia Dortmund. (disputed by 2 sources) - Konstantinos Karetsas transferred from KRC Genk to Borussia Dortmund. (corroborated by 19 sources) - Karetsas will wear the number 19 shirt for Borussia Dortmund. (corroborated by 18 sources) - The transfer fee was reported at about €30 million, potentially rising to €32 million with bonuses. (corroborated by 17 sources) - Karetsas is 18 years old, has 10 caps for Greece and has scored three international goals. (corroborated by 17 sources) - Dortmund view Karetsas as a creative replacement for Julian Brandt. (corroborated by 17 sources) - Sport director Ole Book praised Karetsas' creativity, technical skill and potential to enrich the team. (corroborated by 17 sources) ## Timeline ### 2026-08-30: Konstantinos Karetsas shines in Borussia Dortmund debut Konstantinos Karetsas starred in his Bundesliga debut for Borussia Dortmund, earning MVP honors in a 2-0 win over Hamburg, though the match was marred by a serious injury to Jannis Konstantelias. 5 sources. https://clstr.news/cluster/konstantinos-karetsas-shines-in-borussia-dortmund-debut ### 2026-08-26: Borussia Dortmund integrates new Greek talents amid transfer tension Borussia Dortmund welcomes Greek talents Giannis Konstantelias and Konstantinos Karetsas, amid transfer-related protests from PAOK Thessaloniki supporters. 2 sources. https://clstr.news/cluster/borussia-dortmund-integrates-new-greek-talents-amid-transfer-tension ### 2026-08-24: Makis Gagatsis discusses Giannis Konstantelias's national team status EPO President Makis Gagatsis addressed Giannis Konstantelias's absence from the Greece national team, citing family reasons and noting that the door remains open for his eventual return. 13 sources. https://clstr.news/cluster/giannis-konstantelias-remains-eligible-for-greek-national-team-amid-dortmund-move ### 2026-08-22: PAOK Sporting Director Leo Matos discusses Konstantelias transfer PAOK Sporting Director Leo Matos discusses his return to the club and the transfer of Giannis Konstantelias to Borussia Dortmund, framing the move as a positive step for player development. 8 sources. https://clstr.news/cluster/paok-director-leo-matos-discusses-konstantelias-transfer ### 2026-08-21: Giannis Konstantelias completes first training with Borussia Dortmund Giannis Konstantelias completed his first training session with Borussia Dortmund, reuniting with Greek teammate Konstantinos Karetsas. 4 sources. https://clstr.news/cluster/giannis-konstantelias-completes-first-training-with-borussia-dortmund ### 2026-08-19: PAOK veterans call for unity following Konstantelias transfer PAOK veterans have called for club unity following Giannis Konstantelias’s transfer to Borussia Dortmund, supporting management and urging fans to reject divisive opinions. 6 sources. https://clstr.news/cluster/paok-veterans-call-for-unity-following-konstantelias-transfer ### 2026-08-14: Borussia Dortmund signs Giannis Konstantelias from PAOK Borussia Dortmund has signed Greek playmaker Giannis Konstantelias from PAOK in a record deal worth up to €32 million, sparking protests from PAOK supporters. 90 sources. https://clstr.news/cluster/borussia-dortmund-targets-giannis-konstantelias-after-el-mala-transfer-fails ### 2026-08-07: Giannis Konstantelias linked with Borussia Dortmund transfer interest Greek striker Giannis Konstantelias of PAOK is being linked with Borussia Dortmund as the German club looks for a replacement for Karim Adeyemi, though no official offer has been made. 5 sources. https://clstr.news/cluster/giannis-konstantelias-linked-with-borussia-dortmund-transfer-interest ### 2026-08-05: Borussia Dortmund pushes for Said El Mala transfer as Konstantinos Karetsas joins Borussia Dortmund is negotiating a €40‑45 million deal for Said El Mala while finalising the €30 million signing of Konstantinos Karetsas, and eyes further Greek talent. 9 sources. https://clstr.news/cluster/borussia-dortmund-signs-greek-teen-karetsas-and-targets-another-greek-midfielder ### 2026-08-02: Borussia Dortmund signs 18‑year‑old Greek forward Konstantinos Karetsas Borussia Dortmund have signed 18‑year‑old Greek forward Konstantinos Karetsas from KRC Genk on a five‑year deal until 2031, for a fee of €30‑32 million; he will wear number 19 and is seen as a creative replace‑ 30 sources. https://clstr.news/cluster/borussia-dortmund-signs-teenage-forward-konstantinos-karetsas-from-krc-genk ### 2026-08-02: Yan Couto to join Italian club Como on loan Yan Couto, Dortmund’s under‑performing right‑back, is set for a loan to Como with a €20 million buy‑option, freeing Dortmund’s wage bill; Elias Baum is eyed as his replacement. 14 sources. https://clstr.news/cluster/marcel-sabitzer-linked-with-possible-transfer-to-bologna ### 2026-07-31: Borussia Dortmund Announces Two New Signings Borussia Dortmund signed Greek forward Konstantinos Karetsas for €30‑32 m and veteran midfielder Connor Krempicki on a free deal, bolstering its senior and U23 squads. 4 sources. https://clstr.news/cluster/borussia-dortmund-announces-two-new-signings ### 2026-07-27: Konstantinos Karetsas joins Borussia Dortmund in €30‑41 million deal Konstantinos Karetsas signs a five‑year contract with Borussia Dortmund in a €30‑41 million transfer from KRC Genk, featuring a 10 % sell‑on clause and a record fee for the Belgian club. 18 sources. https://clstr.news/cluster/borussia-dortmund-moves-to-secure-greek-prospect-konstantinos-karetsas-from-genk ### 2026-07-25: Borussia Dortmund intensifies bid for Konstantinos Karetsas Borussia Dortmund pushes to sign 18‑year‑old Greek midfielder Konstantinos Karetsas from Genk, offering ~€30 m; Genk seeks up to €40 m. Talks in Belgium imminent; Galatasaray also monitoring. 10 sources. https://clstr.news/cluster/borussia-dortmund-targets-konstantinos-karetza-transfer-from-belgian-club-gantoise ### 2026-07-22: Borussia Dortmund Poised to Sign Greek Striker Konstantinos Karetsas Borussia Dortmund is close to signing Greek striker Konstantinos Karetsas on a €30 million deal until 2031, while AC Milan also vies for the player. 2 sources. https://clstr.news/cluster/borussia-dortmund-poised-to-sign-greek-striker-konstantinos-karetsas ### 2026-07-20: Dortmund and AC Milan vie for Genk talent Konstantinos Karetsas Borussia Dortmund and AC Milan are competing for Genk midfielder Konstantinos Karetsas, with Dortmund’s bid above €30 million and Milan needing to fund a purchase, while Genk holds firm on a €35‑40 million fee. 13 sources. https://clstr.news/cluster/ac-milan-pursues-genks-konstantinos-karetsas-in-3540m-transfer-bid ### 2026-07-18: Konstantinos Karetsas transfer saga: Dortmund leads race as clubs debate €35 million price Kretingos Karetsas, 18, is valued at €35 m by Genk; Borussia Dortmund leads the chase amid offers from Chelsea, AC Milan and other clubs, but Genk has turned down all bids so far. 12 sources. https://clstr.news/cluster/ac-milan-and-borussia-dortmund-target-genk-prodigy-konstantinos-karetsas ### 2026-07-14: Borussia Dortmund assigns jersey numbers to new signings as Schlotterbeck sidelined Borussia Dortmund announced jersey numbers for new signings Gadou (22), Prates (36) and Lerma (28) while defender Nico Schlotterbeck is out until mid‑September, missing the season start. 4 sources. https://clstr.news/cluster/borussia-dortmund-assigns-jersey-numbers-to-new-signings-as-schlotterbeck-sidelined ### 2026-07-11: Borussia Dortmund close in on Konstantinos Karetsas from Genk Borussia Dortmund are close to signing 18‑year‑old Greek midfielder Konstantinos Karetsas from Genk for a fee of €35‑40 million, aiming to replace Julian Brandt. 23 sources. https://clstr.news/cluster/borussia-dortmund-intensifies-pursuit-of-genk-midfielder-konstantinos-karetsas ### 2026-07-10: Borussia Dortmund signs 16‑year‑old Croatian defender Liam Claude Kanté Borussia Dortmund has signed 16‑year‑old Croatian centre‑back Liam Claude Kanté from NK Lokomotiva Zagreb, pending FIFA clearance, and plans to develop him in the club’s U19 side. 2 sources. https://clstr.news/cluster/borussia-dortmund-signs-16yearold-croatian-defender-liam-claude-kant ### 2026-07-03: Borussia Dortmund's Transfer Window Shifts: Tresoldi and de Cat Exit, Prates Joins Later Borussia Dortmund lose out on Tresoldi and de Cat, while new signing Kaua Prates must wait until August to train due to age rules. 2 sources. https://clstr.news/cluster/borussia-dortmunds-transfer-window-shifts-tresoldi-and-de-cat-exit-prates-joins-later ### 2026-06-12: Thierry Tazemeta leaves Borussia Dortmund for 1. FC Kaiserslautern 18‑year‑old Austrian winger Thierry Tazemeta leaves Borussia Dortmund’s academy to join 2. Bundesliga side 1. FC Kaiserslautern for the 2026/27 season after 45 youth appearances and 21 goals. 4 sources. https://clstr.news/cluster/thierry-tazemeta-joins-1-fc-kaiserslautern-from-borussia-dortmund --- Cite as: Konstantelias injury and Dortmund transfer developments. CLSTR, https://clstr.news/situations/borussia-dortmund-transfer-activity-2026