Piazon began his career as a teenager at Chelsea, where he was signed from Sao Paulo. He then played in several countries, including the Netherlands, Germany, Spain, England, and Italy. During his time at Chelsea, he made three senior appearances for the team.

Before joining Wieczysta Krakow, Piazon played for several clubs, including Vitesse in the Netherlands, Eintracht Frankfurt in Germany, Malaga in Spain, Fulham in England, and Chievo Verona in Italy. Most recently, he played in Portugal for AVS Futebol SAD.

Piazon joins Wieczysta Krakow as a free agent, and the club is excited to have him on board.