Bulls head coach Johan Ackermann revealed he would be reaching out to the referees of their clash against Scarlets to find out why David Kriel's late try was ruled out.
Springbok flyhalf Handre Pollard's boot proved to be the difference between the sides as the Bulls pulled off a scrappy 23-21 win over Scarlets in Wales in the United Rugby Championship on Saturday.
The Bulls have strengthened their forward pack and reshuffled their backline for this weekend's all-important URC clash against the Scarlets.
Bulls captain Marcell Coetzee is motivated by their winless record against the Scarlets in Wales ahead of their United Rugby Championship fixture this weekend.
Munster have completed the signing of Springbok hooker Marnus van der Merwe, with the 29-year-old set to arrive from the Scarlets on a two-year contract.
Sharks head coach John Plumtree was pleased with his side's United Rugby Championship bonus-point victory over Scarlets, but acknowledged that his team is still a work in progress.