Konstantinos Karetsas and Joane Gadou: Borussia Dortmund's next young stars?

From Mario Götze and Ousmane Dembélé to Erling Haaland and Jude Bellingham, Borussia Dortmund have long been synonymous with exciting young talent. Could Konstantinos Karetsas and Joane Gadou be the latest to follow in their footsteps?