New Zealand may go into the final Tri Nations match of 2010 already confirmed as champions, but the All Blacks have a number of records within their sights, including the biggest ever margin at the top of the IRB World Rankings.

The All Blacks currently sit 8.25 rating points above Australia, their opponents at the ANZ Stadium in Sydney on Saturday who leapfrogged South Africa following a dramatic last gasp win in Bloemfontein last weekend.

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However, a victory by more than 15 points will increase New Zealand's cushion as the number one side in the rankings to 9.67 points, surpassing the 9.41 advantage the All Blacks enjoyed over France back on 25 June 2007.

Their rating that day was 95.01 and a convincing win over the Wallabies will bring Richie McCaw's men to within a hundredth of that mark, not to mention leave Australia sitting only 11 hundredths above the Springboks.

A victory by a smaller margin will still see New Zealand's advantage stretch beyond nine rating points before they face the Wallabies in the final Bledisloe Cup test of 2010 in Hong Kong at the end of October.

New Zealand, bidding to record a 15th consecutive test victory - three shy of the new record set by Lithuania earlier this year, will be without star fly half Daniel Carter because of injury, giving former IRB Junior Player of the Year Aaron Cruden a first test start.

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Australia, though, will be looking to deny New Zealand the first clean sweep of the Tri Nations since 2003 - and the first ever over six matches - as well as a 10th win in a row over them dating back to September 2008.

If the Wallabies can record only their second win over the All Blacks under coach Robbie Deans then New Zealand's advantage at the IRB World Rankings summit could be slashed to just 3.67 points.

For this to happen Australia must win by more than 15 points, but even a smaller margin of victory will reduce the deficit to 5.21 rating points and give them some breathing space above third ranked South Africa.

The IRB World Rankings, which were introduced in October 2003, update every Monday at 12:00 UK time.