Dortmund teenager Karetsas is back in training after health problems in Champions League

- Karetsas: 4 events in the last 90 days
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What happened
Borussia Dortmund says 18-year-old midfielder Konstantinos Karetsas is back in training just over a week after he slumped to the ground in an alarming medical incident on his Champions League debut. Karetsas passed the ball to a teammate then signaled his distress to the referee before sitting on the grass during Dortmund's 3-2 win over Villarreal on Sept. 8. “Konstantinos Karetsas is back in team training as of Wed…
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