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London - Referee Chris Pollock will return home to New Zealand to attend a family funeral.
As a result Pollock will not take charge of the Australia v Fiji pool A game in Cardiff on Wednesday.
Pollock, who is an assistant referee for the Tonga vs Georgia game in Gloucester on Saturday, will be replaced by compatriot Glen Jackson.
Pollock is due to return to England on September 23 and will continue with his World Cup appointments.
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How will the Springboks fare in their three end of year tour Tests against England, Italy and Wales?
Victory in all 3 Tests!
Will beat England and lose the rest
Will beat England and Italy and lose to Wales
Will beat England and Wales and lose to Italy
Will lose to England and beat the rest
Will lose to England and Italy and beat Wales
Will lose to England and Wales and beat Italy
Will lose all 3 Tests!