Griquas recovered from a halftime deficit to beat Western Province 38-29 in their Currie Cup clash played in Kimberley on Friday.
Following a social media post appearing as a dig at the Bulls, director of rugby Jake White says winger S'bu Nkosi is the only one accountable for the course of his future.
Johan Goosen's 14 points and David Kriel's two tries led the Blue Bulls to a hard-fought 24-17 win over the Pumas at Mbombela Stadium.
The Sharks overcame the Griffons, while the Lions saw off Western Province in Friday evening's Currie Cup action.
In a thrilling Currie Cup clash at Ellis Park, the Bulls secured a tense victory against the Lions with after a missed last-minute drop-goal attempt by Gianni Lombard.
There were wins for the Sharks and Western Province on Friday as the Currie Cup season continued its march towards an exciting climax next month.