Twenty fours remain for the USA 7s in Las Vegas to kick off and teams have brought in their big guns to ensure a good outing.

Samoa have brought in Spain based Uale Mai as cover for captain Lolo Lui, who is suspended and will play no part in Las Vegas.

Meanwhile, the South Africans have brought in Cecil Afrika.

Afrika scored a total of 17 tries in the first two tournaments and is still joint top in the try scoring charts, despite having played no part in Wellington last weekend.

Coach Paul Treu says Afrika’s inclusion is a last minute bid to lift the team’s performance.