Attacking midfielder Famara Jarju opened the scoring with a sumptuous effort after four minutes before Ousman Jallow leveled in the 48th minute.
But second-half sub Omar Jobe settled matters deep into stoppage time, by tapping in a low cross to hand victory to the City Boys.
The match was well attended, and all proceeds collected have been handed over to the foundation.
A former Real de Banjul and current Real Salt Lake player, Mansally founded the foundation (www.mansallyfoundation.org) as an avenue to give back to the community that nurtured him in his youth.
Through his foundation, Mansally helps children in The Gambia have access to food, medical care and education, and opened up to them possibilities to a brighter future like the one he has enjoyed in his eight seasons in Major League Soccer. Source: Realdebanjul.gm