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.
The Golden Lions came from behind to beat the Griffons in the Currie Cup on Friday, while the Free State Cheetahs dominated the Blue Bulls.