# Konstantinos Karetsas health and professional profile > Live situation record from CLSTR: https://clstr.news/situations/konstantinos-karetsas-health-and-professional-profile > Updated: 2026-10-01T21:43:00.000Z. Sources: 106. Developments: 4. Borussia Dortmund midfielder Konstantinos Karetsas recently underwent medical evaluation following a health scare during a Champions League match against Villarreal. The 18-year-old experienced circulatory issues that required him to be carried off the pitch on a stretcher. While his mother suggested dehydration was the cause, the club stated that investigations showed “no significant abnormalities” after three days of testing. Karetsas has since begun individual training. Following Greece’s victory over Germany, media coverage has shifted toward the player’s professional background. Reports highlight that his father, Vaios, intentionally trained him to prioritize teamwork and vision over scoring to develop his playstyle. Although born and raised in Belgium, Karetsas has chosen to represent the Greek national team. Now 19, Karetsas has gained further attention following Greece's 1-0 Nations League victory over Germany. His performance included a viral dribble against Jonathan Burkardt. His specialized training has yielded significant results, including 18 assists last season with Genk. The player’s family maintains a strong connection to the Greek club PAOK, and his background includes a family history of migrating to Belgium to work in coal mines. Due to Karetsas's consistent involvement in the Nations League, Borussia Dortmund has reportedly requested that the Greek national team exercise careful management regarding his playing time to prevent overexertion. However, Greece national team coach Ivan Jovanović has addressed these reports, characterizing them as “exaggerations.” Jovanović denied that any formal request had been made by the German club, emphasizing that coaching decisions are based solely on player fitness and that no European club has requested special treatment for players during his tenure. As the UEFA Nations League enters its fourth matchday, Greece prepares to host Germany in a high-stakes Group A2 clash. Greece currently leads the group following their victory in Augsburg and a 2-2 draw against the Netherlands. ## Claims - Germany defeated Serbia 2-0 in a UEFA Nations League match. (corroborated by 2 sources) - Germany lost 0-1 to Greece at the WWK Arena in Augsburg. (corroborated by 2 sources) - Jurgen Klopp expressed a desire for Florian Wirtz to play in his natural style. (single source) - Tom Bischof scored his first senior international goal during the match against Serbia. (single source) - Derry Scherhant made his debut for the German national team as a left-winger. (single source) - Greece currently leads Group A2 in the UEFA Nations League. (single source) - Florian Wirtz has recorded 12 goals and 15 assists in his career. (single source) - Philipp Treu earned his second international cap for Germany. (single source) ## Timeline ### 2026-10-01: UEFA Nations League: Greece hosts Germany amid high-stakes group matches The UEFA Nations League continues with key matchups, including Greece hosting Germany and Portugal facing Norway, amid discussions on player fatigue and squad changes. 100 sources. https://clstr.news/cluster/borussia-dortmund-requests-careful-management-of-konstantinos-karetsas ### 2026-09-29: Konstantinos Karetsas: How his father's coaching shaped his playstyle German media BILD reports on how Konstantinos Karetsas's father trained him to prioritize teamwork over scoring, shaping the Borussia Dortmund player's professional style and vision. 6 sources. https://clstr.news/cluster/konstantinos-karetsas-how-his-fathers-coaching-shaped-his-playstyle ### 2026-09-28: Konstantinos Karetsas shines in Greece's victory over Germany Borussia Dortmund's Konstantinos Karetsas is drawing international praise following Greece's Nations League win over Germany, highlighted by his technical skill and family ties to PAOK. 2 sources. https://clstr.news/cluster/konstantinos-karetsas-shines-in-greeces-victory-over-germany ### 2026-09-11: Konstantinos Karetsas discharged from hospital after Dortmund health scare Borussia Dortmund's Konstantinos Karetsas has been discharged from the hospital after a health scare during a Champions League match. He has begun individual training and may return for the Stuttgart game. 8 sources. https://clstr.news/cluster/konstantinos-karetsas-discharged-from-hospital-after-champions-league-collapse --- Cite as: Konstantinos Karetsas health and professional profile. CLSTR, https://clstr.news/situations/konstantinos-karetsas-health-and-professional-profile