Mamelodi Sundowns captain Hlompho Kekana’s second half goal was the decider as the Brazilians maintained grip at the top of Group C with a crucial 1-0 away win at USM Alger.
The South Africans remain unbeaten at this stage of the campaign with two victories and a draw as they also kept an overall fourth successive clean sheet following this victory at Stade Mustapha Tchaker in Blida.
They now host third-placed USM Alger in their next match on January 11.
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Elsewhere in Group C, Ayoub El-Kaabi struck a hat-trick as Wydad Casablanca beat Petro Atletico 4-1 at home to restore a two-point gap between them and leaders Sundowns.