Duah was selected with the No. 1 overall pick in the
2025 MLS SuperDraft by
San Diego FC (SDFC). With the selection, Duah became the first-ever draft pick for San Diego FC, an expansion club. On 19 July 2025, he made his first home start in a 1–1 draw against Vancouver Whitecaps FC. Despite scoring an own goal, he was selected as the player of the match. On 3 February 2026, in round one of the
2026 CONCACAF Champions Cup against
Pumas UNAM, Duah scored San Diego FC's first goal in a 4–1 comeback victory, his first professional goal. == Career statistics ==