Mwesigwa Emma scored the only goal of the game as the champions will now seek to take home a second consecutive crown.
Goals from Nsereko Shafik and Nakibinge John were enough to secure a knockout berth for the Masaka based side
Nkumba will host IUIU in the first game of the competition.
The two sides meet in the second leg of the Pepsi University Football League following UCU's 4-0 win IUEA last week
St. Lawrence who finished third last season were held to a 1-1 draw by former champions Uganda Martyrs in their previous game while IUIU held Gulu to a...
IUEA started their campaign off resiliently when they held Kampala University who are also two time champions to a goalless draw away at Villa Park
The champions started their title defence with a 4-2 victory against Kampala International University at home on the opening day.
Nkumba who finished at the bottom of their group last season had to get past Kabale University in the preliminary rounds to seal a berth in Group A.
Uganda Martyrs will be under the management of new coach Noah Mugerwa following the departure of Shafiq Bisaso.
MUBS failed to get past the group stages last year but coach Charles Aiyekoh is optimistic his side will do better this year
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