Rassie Erasmus’ Springboks will become the first South African side in history to defend the Rugby Championship title if they beat Argentina in London this Saturday — a result that could set the platform for even greater success in years to come. A riveting edition of the Rugby Championship will come to a head this weekend, and it’s looking increasingly likely that the Springboks will finish the round at the top of the log. Twickenham result carries extra significanceIt’s been a rollercoaster of a Rugby Championship, with all four teams struggling for consistency home and away. If they crack on to win this match, they will make Rugby Championship history, and will have reason to believe that further victories against France and Ireland this November are within their grasp. The Boks have already retained the Freedom Cup, thanks to the drawn series in New Zealand, and if all goes to plan this Saturday, they will retain the Rugby Championship title, too.