Ahead of the USA Sevens match with South Africa, check out this introduction! <br /> <br />Follow World Rugby on social media: <br />TWITTER.COM/RUGBYWORLDCUP <br />FACEBOOK.COM/RUGBYWORLDCUP <br />WWW.TWITTER.COM/WORLDRUGBY <br />FACEBOOK.COM/WORLDUGBY <br />INSTAGRAM.COM/WORLDRUGBY
