Cape Town - There's a firm belief in the Blue Bulls camp that they have what it takes to upset the Sharks in their Currie Cup semi-final in Durban this coming weekend.The men from Pretoria, boosted by their returning Springboks, sneaked into the semi-finals after a convincing 50-29 win over the Golden Lions in Johannesburg on Saturday night.They have now won three out of their last four games and seem to be peaking at the right time after fighting a relegation threat for most of the season.In fact, their only loss in the last month was a narrow, 13-12 loss to the Sharks in treacherous conditions in Durban on September 28. And coach Pine Pienaar believes they can draw a lot from that loss going into Saturday's semi-final at Kings Park."The conditions that night were very tough," Pienaar told the Beeld website."But the tactical plans we made for that game really worked well. If I have my calculations right, we haven't beaten them in a Currie Cup game in Durban since 2006. But after our recent game there, we'll definitely give ourselves a chance."Skipper Dewald Potgieter also shared his coach's sentiments."We played really well against the Sharks at Loftus and we nearly beat them in Durban. But even though we lost that game, it didn't faze us because we now know we can beat the Sharks in Durban."The clash at Kings Park kicks off at 16:30 on Saturday.