Answer
Neuss, a city in Germany, is where Kostas Mitroglou spent his formative years. Born in Kavala, Greece, Mitroglou moved to Germany with his family at a young age and settled in Neuss, where he began his football career with local club Borussia Mönchengladbach. Mitroglou's talent and determination led him to become a professional footballer, and he went on to play for several top clubs in Greece, Portugal, and England.