Watch: Our writers preview New Zealand and South Africa clash
After hosts Japan kicked off proceedings with a convincing victory over Russia, our correspondents in Japan take a closer look at tomorrow's headline game.
The Pool B clash between New Zealand and South Africa will go a long way in determining Ireland's potential quarter-final opponents, while also providing a thorough assessment of two of the tournament favourites.
Brendan O'Brien and Simon Lewis analyse both squads and where the game will be won and lost.
