The 19-year-old signed in July 2026 on a season long loan from Bristol City.

The goalkeeper has progressed through the Robins academy, representing the club from Under-11s to Under-21s level and signed his first professional contract in 2023. 

Across the last two seasons, Duncan has gained senior experience during loan spells at Tiverton Town and, more recently, Farnborough.

The young goalkeeper was also called up to the Jamaica Under-23 camp in March 2024.