Argentina and Australia face each other at Twickenham in the second of the two all-Southern Hemisphere Rugby World Cup semi-finals this weekend. Both sides have impressed on their way to the last four, but which side will prevail and reach the final?

Australia can count themselves lucky to have beaten Scotland 35-34 in the quarter finals. If not for referee Craig Joubert's controversial last-minute penalty, a decision that World Rugby later admitted was a mistake, then it would be the Scots, rather than the Wallabies in this last four clash.

But surely Australia, and in particular fly-half Bernard Foley, will not be as poor again when they take on Argentina at Twickenham? The Pumas have lit up the tournament with some dazzling displays, most notably when they put Ireland to the sword 43-20 in the quarter finals. If they go one better and beat the Wallabies, then this exciting South American side would really prove itself as a major force in international rugby.

In this video, IBTimes UK sports editor Nick Howson previews the match and gives his predictions on who will emerge victorious.

Argentina vs Australia kicks off at 4pm BST on 25 October. Live coverage is available on ITV HD and BBC Radio 5 Live.