Uganda Cranes captain Denis Onyango kept a crucial clean sheet in Sundowns 2-0 win away to Equatorial Guinea’s Leones Vegetarianos in the Caf Champions League.
Jeremy Brockie and Themba Zwane scored the goals for the Brazilians who are now favourites to march to the next round.
Brockie gave the former African champions a lead after just 10 minutes while Zwane put the icing on the cake with a strike in the 77th minute.
Last season, Sundowns was knocked out at the quarter final stages and are eager to put up an improved show on the continent again.
They won the competition in 2016 in a year Onyango was declared Africa’s best player based in Africa.