Borussia Dortmund is at the forefront of international interest in Karetsas, showing significant interest in acquiring him. Dortmund and Monaco are leading the chase for the young Greek talent, with Manchester United and Newcastle also monitoring him closely. Karetsas, who has recently made history as the youngest scorer for Greece, is attracting attention from clubs across Europe, including from Serie A teams like Bologna and Udinese, as well as Napoli.