Vuiviawa Naduvalo scored a double as Fiji managed to hold off a second half fightback from New Zealand to clinch the Singapore leg of the Men's HSBC World Rugby Sevens Series.

The opening day of the Singapore leg in the Men's HSBC World Rugby Sevens Series saw USA, New Zealand and Australia remain unbeaten.

South Africa made a terrific second half comeback where they scored 20 unanswered points as they edged out Fiji 20-19 in a thrilling final at National Stadium to clinch the Singapore leg of the HSBC World Rugby Sevens Series.

Canada managed to overcome a late resistance from USA as they clinched their maiden World Rugby Sevens series in Singapore with a 26-19 triumph on Sunday.