These four players have impressed in their debut season on the HSBC Sevens World Series - but who do you think deserves to be named the rookie of the year for sevens? <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
