Kaizer Chiefs stayed on course for a domestic double by defeating Polokwane City 2-0 Saturday to reach the South African FA Cup quarter-finals.
Sthembiso Ngcobo put the league leaders ahead during the first half and fellow striker Kingston Nkhatha added a second goal in the closing stages at Moses Mabhida Stadium in Indian Ocean city Durban.
Polokwane, a second-tier side that included former Democratic Republic of Congo goalkeeper Nkueni Mayala and ex-Malawi striker Esau Kanyenda, were never overawed and came close to scoring before falling behind.
Chiefs are five points clear of Orlando Pirates with eight rounds left of the title race and are the team to beat in the Cup, which carries a six-million-rand ($650,000/500,000 euros) first prize.
Bloemfontein Celtic came from behind to edge Free State Stars 2-1 in a derby settled two minutes from time when substitute Lennox Bacela beat Zambia goalkeeper Kennedy Mweene.
Luyolo Nomandela put Stars in front midway through the first half at Charles Mopeli Stadium in central town Phuthaditjhaba only for Lyle Lakay to equalise with a quarter of the game to go.
There will be at least two non-Premiership clubs in the last-eight draw as United won an all-second tier clash with Jomo Cosmos 1-0 and another second level side, African Warriors, host fourth-tier Maluti College Sunday.
The students caused the biggest shock of the 43-year competition by trouncing former African champions Pirates 4-1 in the previous round despite missing a penalty.