Donal Spring Rugby Analyst: While upsets are very unlikely in this tournament, the games between the weak and very strong nations may yet be significant because of the injuries that have been picked up by the top teams.

At this stage of the tournament avoiding injuries is the most important objective after securing victory.

New Zealand, in particular, have been badly hit, with other countries suffering to a lesser extent.

We have been fortunate in our two games and should have a full squad available for selection against Argentina subject to Reggie Corrigan's shoulder having recovered and - hopefully - no action against Paul O'Connell arising from yesterday's game.

He will be very unfortunate if he is suspended. I don't believe he could see the person on the ground when he was lifting his feet. He probably felt somebody was trying to bring him to the ground and thereby stop the Irish maul, which was going forward at speed. Players in that position, with their back to the opposition, are very vulnerable.

If they are brought down, the whole thing collapses on top of them. The Namibians had already done this on a number of occasions prior to this incident.

The touch judge saw it very clearly and didn't consider it to merit any more than a penalty. It should have been left at that.

Unfortunately for the Irish player, this is one of those incidents that looks worse the more one watches it in replays.

Hopefully sense will prevail, but I fear the IRB will want to be seen to be taking action.

The game itself was a wash-out in every sense. Most teams in the All-Ireland League would probably have beaten the Namibian side.

I am reluctant to criticise the Irish team, because it is very hard to judge just how bad the conditions were in Australia, while watching on television on a sunny, dry October day in Ireland. Something is definitely happening to the weather.

Conditions were clearly very bad, but our performance was not as clinical, ruthless and disciplined as it might have been.

The big decision for next week's game against Argentina will be, of course the outhalf position. My view on it is the same as it was before this match, which is that I would play Ronan O'Gara rather than David Humphreys.

But I believe Irish coach Eddie O'Sullivan will go for the latter.

The rest of the team picks itself, but Simon Easterby did himself no harm yesterday when he did far more of the hard graft than his two back-row colleagues.

I thought the game between England and South Africa was the highlight of the tournament so far in relation to the major sides.

I don't mean to be disrespectful to Fiji and the US, whose encounter, I am told, was very entertaining, but we really are talking about different levels.

The English victory showed again how organised and disciplined they are and, of course, how incredibly reliable Jonny Wilkinson is with his place-kicking and drop goals. It wasn't his greatest all-round performance and at times he struggled (by his standards) in the general play, but it still didn't affect his kicking.

One short period early in the second half when England were leading 9-6 summed up the difference between the two sides. South Africa were attacking the English line and came close to scoring, first in the right corner and then the left, but were held out. England kicked down field, the Springbok full back, Joost van der Westhuizen, knocked on what should have been a simple ball and England finish up with three more points.

Before the tournament began I fancied New Zealand, England and Australia in that order. Injuries may well prove too costly to the All Blacks in the long run while England's tournament seems to be going to plan.

Australia are the dark horses, however. They were not given much chance before this tournament, but they may be just coming right at the right time and, don't forget, they are playing at home.