The Bulls' Springbok trio of Adriaan Strauss, Jan Serfontein and Handré Pollard are set to return to action against the Sharks on Saturday.
According to the Bulls team doctor Org Strauss, all three are ready to travel to Durban, along with Lappies Labuschagne, who recovered from his shoulder injury that kept him out of action for the matches against the Crusaders, Lions and Reds.
Strauss was rested against the Reds per the SARU agreement, while Serfontein last played against the Western Force and Pollard against the Crusaders.
A number of players, Jacques-Louis Potgieter (hamstring), Marcel van der Merwe (ankle), Burger Odendaal (contusion), Bjorn Basson (ankle) and Morné Mellett (back spasm) did not train on Monday, but will be back on Tuesday, Strauss confirmed. Akona Ndungane has also recovered from a broken hand.
Victor Matfield (knee, two to three weeks), Travis Ismaiel (ribs, 20 April) and William Small-Smith (foot, 20 April) will return before the month's end.
Pierre Schoeman, Bandise Maku, Carlo Engelbrecht, Werner Kruger, Duncan Matthews, Ruan Steenkamp and Ryan Nell are all still on the long-term injury list.