Sundowns advanced to the next stage of the continental competition in impressive fashion with a 4-2 win over Al Hilal.
Striker Peter Shalulile gave the Brazilians an early lead in the second minute with Tebogo Mokoena and a Thapelo Morena brace sealing a dominant win.
"Congratulations to Mamelodi Sundowns for officially qualifying," Mokwena said post-match.
"Coming into the game with ten points and with yesterday's result we were already assured of mathematically advancing to the next round.
"It wasn't an easy game knowing already that you've qualified, particularly when you have to deal with the conditions and heat against a good Al Ahly side.
"Huge congratulations to our players for showing fight and fantastic team spirit to make sure we win the game.
Sundowns next host Al Merrikh in their final Group A encounter in an April Fool's clash on Friday.