Bulls flanker Shaun Adendorff has sustained a thumb fracture and will be sidelined for six weeks.

Fellow flanker Jacques Potgieter has a concussion suffered against the Cheetahs last weekend, but should be available when the Bulls return from this weekend's bye.

Meanwhile, Arno Botha, Jan Serfontein and Jannes Kirsten have been cleared to return to play after recovering from their respective injuries.

Photo: Carl Fourie/Gallo Images