An 82nd minute strike from newbie Uche Onwuasonaya gave Rivers United a 1-0 win to progress 2-0 on aggregate.
Recall, Rivers United held a slender 1-0 advantage after the game in Dar es Salam.
It was a cagey affair at the Adokiye Amiesimaka Stadium, Port Harcourt, but Stanley Eguma's inspired second half substitutions made the difference.
The victory earns Rivers United a first round ticket where they will face Sudanese giants Al Hilal.
PHOTOS
RUFC MEDIA
19th September, 2021