Diego Sia is a professional footballer from ITA and is currently 21 years old. He is on the books of Mirandes and wears shirt number 20. At international level, he features for Italy U19. His main role on the pitch is Forward. His stronger foot is Right. His estimated market valuation currently stands at 400K €.

His latest transfer saw him join Milan Futuro from Mirandes via Loan on 2026-06-30.

During the Spanish Segunda Division 2025-2026 campaign, Diego Sia made 4 appearances, scoring 0 goals and adding 0 assists. He averaged 0 goals per match from 0 shots, with 0 on target.