The Stormers have moved to within three points of United Rugby Championship leaders Leinster with a 40-8 thrashing of the Lions at Cape Town Stadium.
The Sharks recorded their sixth United Rugby Championship victory from nine starts this season after they overpowered the Bulls 47-20 in Durban.
The Sharks have selected a star-studded line-up for what should be a thrilling New Year's Eve URC derby against the Bulls at Kings Park.
The Bulls are under no illusions as to the difficulty of the task that awaits them in Saturday's URC derby at King's Park.
Fresh from scoring in a North-South derby win, Leolin Zas is looking forward to helping the Stormers cap off an unbeaten year at home against the Lions on Saturday.
United Rugby Championship CEO Martin Anayi has praised the league's clubs for drawing in over 117 000 fans over the Christmas weekend as a new record attendance was set for the festive fixtures.