The Griffons almost pulled off a sensational come-from-behind victory but fell short as they went down 47-45 to the Cheetahs in their Currie Cup clash in Welkom.
Sharks' Ntuthuko Mchunu scored two tries in the second half, leading his team to a 29-21 victory over the Lions and securing a home semifinal in the Currie Cup.
The Bulls secured a crucial 40-20 victory over the Griquas with an impressive all-around performance in Kimberley on Saturday.
The Sharks made a big statement in the Currie Cup as they claimed a comprehensive 41-27 bonus-point win over the Blue Bulls at Loftus on Saturday night.
The Golden Lions pulled off a stunning upset against the Pumas with a score of 26-10 at Emirates Airline Park in Johannesburg on Friday.
The Free State Cheetahs made a comeback in the second half to defeat Western Province 26-17 on Saturday, claiming top spot in the Currie Cup standings.