South Africa's Sundowns defeated CR Belouizdad 6-2 on aggregate. Photo: Sundowns facebook page
Sundowns sealed their passage with a 6-2 aggregate victory, having won the first-leg 4-1 away from home last weekend.
The hosts staged a comeback win as Themba Zwane, 45, and Thapelo Morena, 49, canceled out Sofiane Bouchar's early lead in the 24th minute.
Wydad Casablanca scraped into the last-four with a 4-3 victory on penalties over Tanzania's Simba on Friday.
Sundowns are in their quest for a second CAF Champions League title having won once before when they defeated Egyptian side Zamalek 3-1 in a two-legged final in 2016.
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