Samoa open USA Sevens defence with two wins

South Africa's Cornal Hendricks (L) is tackled by Uruguay's Santiago Gibernau at the USA Sevens Las Vegas on February 8, 2013. South Africa ended the day with a perfect 2-0 record. They routed Uruguay 45-0 then followed up with a 17-5 victory over Canada.Defending champions Samoa came from 12-0 behind to beat Spain 19-12 on the opening day of the US stop in the IRB Sevens World Series. Captain Afa Aiono scored the winning try under the posts, delighting a vocal contingent of Samoa fans at Sam Boyd Stadium. "It was really tough.