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Haugh has been called up to the All Black Sevens squad for the tournament in Cape Town this weekend.
The squad lost six players to injury at last weekend's successful tournament in Dubai.
Otago winger Jona Nareki missed the Dubai tournament after injuring himself before the tournament but has flown to Africa and hopes to be right for the tournament.
Haugh played for the All Blacks Sevens development squad in Fiji last month.
He will be joined by Chiefs outside back Etene Nanai-Seturo, who has been released by the franchise to play sevens.
It is good news for Haugh but not so great for Otago as he is unlikely to be available for the province at the national tournament in Tauranga in 10 days.
Returning home are Kurt Baker, Akuila Rokolisoa, Scott Curry and Sam Dickson.