Springbok prop Thomas du Toit labelled two of his teammates as "absolute freaks of nature" in a recent interview.
The Bulls are set to be without Springbok flyhalf Handre Pollard for the remainder of their United Rugby Championship tour north.
The Bulls went down 28-7 to Ulster in the first of their three-match United Rugby Championship tour north on Saturday night.
Injury has severely hampered Lukhanyo Am's career, but the Springbok centre has not given up on green and gold dreams.
Several of the world's biggest rugby unions have banded together to pour cold water on the formation of the proposed R360 league.
The Rugby Championship could soon undergo a major shake-up, with organisers exploring a potential move to January or February as part of wider plans to align the global rugby calendar.