The Bulls have added further depth to their backline with highly-rated Currie Cup-winning Griquas centre Mnombo Zwelendaba joining Johan Ackermann's squad on loan.
Griquas retained their Currie Cup trophy after beating the Pumas 23-16 in a hard-fought, tense final in Kimberley on Saturday.
The Griquas and Pumas will meet in the Currie Cup final after beating the Lions and Cheetahs respectively in Currie Cup semifinal action on Sunday.
Griquas secured a home Currie Cup semifinal with a commanding 45-17 victory over Boland Cavaliers in Wellington, scoring seven tries in a dominant display on Sunday.
The Boland Cavaliers staged a stunning comeback to upset the Lions, while defending champions Griquas completed an emphatic victory over the Sharks in Currie Cup action on Friday evening.
The fourth round of the Currie Cup produced exciting action on Saturday with Griquas overwhelming the Lions, the Pumas edging the Bulls and the Sharks beating Boland.