John Mercado is a 24-year-old professional football player from ECU. He currently plays for Sparta Praha, wearing the number 7 shirt. At the international level, he represents Ecuador. He plays primarily as a Forward. His preferred foot is Left. His current market value is estimated at 4M €.

His most recent move was a Free from AVS Futebol SAD to Sparta Praha on 2025-08-11. The reported fee was 3M €.

In the Czech Chance Liga 2025-2026 season, John Mercado scored 4 goals and provided 2 assists across 19 appearances, averaging 0.2 goals per game with 43 shots attempted and 16 on target.