In a dramatic encounter at the Dexcom Stadium, the Bulls emerged victorious with a 28-14 win over Connacht in the BKT United Rugby Championship.
The Sharks held off a late Stormers fightback to beat their coastal rivals 21-15 in their United Rugby Championship (URC) clash at Kings Park on Saturday.
Lions head coach Ivan van Rooyen is under no illusions of the task that lies ahead of him and his team as they take on Munster in Round 7 of the United Rugby Championship on Saturday.
Springbok Marcel Coetzee will lead the Bulls when they return to league action on Saturday in Connacht, Ireland.
Scrumhalf Herschel Jantjies will be released from his contract with the Stormers at the end of the current season to take up an offer to play in France.
The new dates for the two opening-round URC derbies involving the four South African teams, which were postponed to avoid a clash with the Currie Cup final, have been confirmed.