The transfer of 16-year-old Greek central midfielder Asterios Konstantinidis to Olympiakos has been announced by Panserraikos and reported on by Gazzetta.gr. Konstantinidis, a product of the Panserraikos academies, had signed a professional contract with the club in February 2025. He later made his Super League debut in May at the age of 15 years and 8 months, which made him the youngest player to have competed in the league. During the 2025/2026 season, he has made 6 appearances for Panserraikos in the Super League U19.