The Jam City boys came into the match with 3 points following their 3-1 victory over Jambur in their opening group match before slipping to Berending 1-0 in their second group match.
Jambanjelly were eager to stun Sambuyang to bounce back in the Kombo South District biggest football carnival.
Modou Lamin Marong gave Jambanjelly the lead in the 42nd minute of the match, which eventually proved to be the winner for the Jam City boys.
The victory moved Jambanjelly to second-spot in Group D with 6 points after three group matches.
Sambuyang remained bottom-place in Group D with 1 point following their goalless draw with Berending before losing to Jambur 5-1 and Jambanjelly 1-0.
