The Springboks are now a best price of just 8/13 to win their three-match series with England.
France, Ireland and England are all taking on southern hemisphere sides this Saturday.
Leinster are firm favourites to win the Champions Cup after dismantling Scarlets in their semi-final.
Six Nations champions Ireland have now replaced England as second favourites for the World Cup.
Joe Schmidt’s Ireland will attempt to win the Grand Slam at Twickenham this Saturday.
Scotland’s first victory over England in a decade has left Ireland as short-priced 6 Nations favourites.
Eddie Jones’ side remain on course for a third successive Six Nations crown.
Joe Schmidt’s side look to have a great chance of regaining the Six Nations title from favourites England.
This year’s Six Nations Championship gets under way in Cardiff on Saturday afternoon as Scotland visit Wales.
A rejuvenated Scotland could hold the key to the Six Nations Championship which starts in February.
England are through to face Australia in the rugby league World Cup final, but only after a huge scare.
England are odds-on to face Australia in the final of the Rugby League World Cup Final.
Joe Schmidt’s side have been trimmed in the betting for the 6 Nations by Irish bookmaker Paddy Power.