Cape Town - The Springboks may be without enforcer Bakkies Botha for their Tri-Nations clash against New Zealand, but they could have a suitable successor to the Bulls' hard man.Debutant lock, Gerhard Mostert, believes physical abrasiveness is one of the key basic elements any lock should have.And it's with that attitude that he intends to take on the All Blacks in Wellington on Saturday. "I think my first job is to do the basic job that a lock is expected to do. Get to the breakdown, hit rucks, hurt a few people. If you do that I don't think there is any need to do anything flashy," said Mostert on the website, All Blacks.com.Mostert's Bok team-mate, Ryan Kankowski, agrees that Mostert's physicality is a key asset for the Boks. "Towards the end of the Super Rugby season he was playing like a machine. I'm happy he's here and what an opportunity for him," said Kankowski."He's a physical player that demolishes rucks. He's one of those guys you want on your side."