Siya Kolisi has been passed fit to play for South Africa against New Zealand in their Rugby Championship showdown at Eden Park on Saturday but will not captain the side, while there is also a return for the experienced Willie le Roux at fullback. World champions South Africa are seeking a first test win in Auckland since 1937 having suffered a shock 38-22 loss to Australia at their own fortress of Ellis Park last month in the opening match of their Rugby Championship title defence. The All