Ruan Sai is a 25-year-old professional football player from CHN. He currently plays for Wenzhou Professional Football Club, wearing the number 10 shirt. He plays primarily as a Forward. He stands at 178cm tall and weighs 67kg. His preferred foot is Right. His current market value is estimated at 50K €.

His most recent move was a from Guangzhou FC U21 to Wenzhou Professional Football Club on 2024-03-08.

In the Chinese Football League 2 2025 season, Ruan Sai scored 3 goals and provided 4 assists across 30 appearances, averaging 0.1 goals per game with 31 shots attempted and 11 on target.