Len Ikitau and Marika Koroibete scored two tries apiece as Australia secured a second successive victory over world champions South Africa in the Rugby Championship in Brisbane. Ikitau touched down twice in the first half, although the Springboks took the lead through centre Lukhanyo Am two minutes into the second half. Koroibete struck twice in six minutes to seal a bonus-point Australia win. New Zealand reclaimed top spot in the world rankings after beating Argentina. The All Blacks are now 10 points clear