New Zealand's Kurt Baker (L) and Tomasi Cama fight for the ball during their Sevens World Series Cup final rugby match against Samoa's at The Sevens stadium in Dubai December 1, 2012. REUTERS/Ahmed Jadallah (UNITED ARAB EMIRATES - Tags: SPORT RUGBY) 

New Zealand's Tomasi Cama fights for the ball against Samoa's Reupena Levasa (L) and Lio Lolo during their Sevens World Series Cup final rugby match at The Sevens stadium in Dubai December 1, 2012. REUTERS/Ahmed Jadallah (UNITED ARAB EMIRATES - Tags: SPORT RUGBY) 

Argentina's Francisco Merello (R) fights for the ball against New Zealand's Tomasi Cama during their Sevens World Series Cup rugby match at The Sevens stadium in Dubai November 30, 2012. REUTERS/Jumana El Heloueh (UNITED ARAB EMIRATES - Tags: SPORT RUGBY) 

New Zealand's Tomasi Cama is chased by England's James Rodwell during their final match at the IRB Glasgow Sevens rugby tournament at Scotstoun Stadium Glasgow, Scotland May 6, 2012. REUTERS/Russell Cheyne (BRITAIN - Tags: SPORT RUGBY) 

New Zealand's Tomasi Cama is chased by England's James Rodwell during their final match at the IRB Glasgow Sevens rugby tournament at Scotstoun Stadium Glasgow, Scotland May 6, 2012. REUTERS/Russell Cheyne (BRITAIN - Tags: SPORT RUGBY) 

New Zealand's Tomasi Cama (R) runs in to score against Argentina during the IRB Glasgow Sevens at Scotstoun Stadium in Glasgow, Scotland May 6, 2012. REUTERS/Russell Cheyne (BRITAIN - Tags: SPORT RUGBY) 

DJ Forbes of New Zealand passes the ball to Tomasi Cama during their Sevens World Series rugby match against Portugal at The Sevens stadium in Dubai December 2, 2011. REUTERS/Jumana El Heloueh (UNITED ARAB EMIRATES - Tags: SPORT RUGBY) 

Portugal's Aderito Esteves (top) tackles New Zealand's Tomasi Cama during their preliminary match at the Hong Kong Sevens rugby tournament, March 26, 2011. REUTERS/Bobby Yip (CHINA - Tags: SPORT RUGBY) 

New Zealand's Tomasi Cama scores during their rugby sevens semifinal match against England at the Commonwealth Games in New Delhi October 12, 2010. REUTERS/Tim Wimborne (INDIA - Tags: SPORT RUGBY) 

New Zealand's Tomasi Cama (R) celebrates scoring a try as England's Isoa Damudamu walks away during their rugby sevens semifinal match at the Commonwealth Games in New Delhi October 12, 2010. REUTERS/Tim Wimborne (INDIA - Tags: SPORT RUGBY) 

Wales' Gareth Davies (L) and Tom Prydie tackle New Zealand's Tomasi Cama (C) during their rugby sevens quarterfinal match at the Commonwealth Games in New Delhi October 12, 2010. REUTERS/Tim Wimborne (INDIA - Tags: SPORT RUGBY) 

Australia's Nick Phipps (C) runs with the ball past New Zealand's Tomasi Cama during their World IRB Sevens World Series cup semi-final rugby match at Murrayfield stadium in Edinburgh, Scotland May 30, 2010. REUTERS/David Moir (BRITAIN - Tags: SPORT RUGBY) 

Argentina's Nicolas Bruzzone (R) falls to the ground as he is tackled by New Zealand's Tomasi Cama during their World IRB Sevens World Series rugby match at Murrayfield stadium in Edinburgh, Scotland May 30, 2010. REUTERS/David Moir (BRITAIN - Tags: SPORT RUGBY) 

Fiji's Niumaia Rokobuli (R) is tackled by New Zealand's Tomasi Cama during the Cup semi-finals of the Hong Kong Sevens rugby tournament March 28, 2010. REUTERS/Bobby Yip (CHINA - Tags: SPORT RUGBY) 

New Zealand's Tomasi Cama (C, bottom ) is tackled by Kenya's Lavin Asego (R) during the Cup quarter finals of the Hong Kong Sevens rugby tournament March 28, 2010. REUTERS/Bobby Yip (CHINA - Tags: SPORT RUGBY) 

New Zealand's Tomasi Cama (R) is tackled by Kenya's Lavin Asego during the Cup quarter finals of the Hong Kong Sevens rugby tournament March 28, 2010. REUTERS/Tyrone Siu (CHINA - Tags: SPORT RUGBY) 

New Zealand's Tomasi Cama (L) is beaten to the ball by Samoa's Timoteo Iosua in their semi-final at the international rugby sevens tournament in Wellington February 6, 2010. REUTERS/Anthony Phelps (NEW ZEALAND - Tags: SPORT RUGBY) 

New Zealand's Tomasi Cama and Kurt Baker (R) react after losing to Samoa in their semi-final at the international rugby sevens tournament in Wellington February 6, 2010. REUTERS/Anthony Phelps (NEW ZEALAND - Tags: SPORT RUGBY) 

Samoa's Mikaele Pesamino (L) kicks the ball as New Zealand's Tomasi Cama (R) attempts to block in the final match at the Emirates Airlines Dubai Rugby Sevens in Dubai December 5, 2009. REUTERS/Karl Jeffs (UNITED ARAB EMIRATES SPORT RUGBY) 

Fiji's Watisoni Votu (C) is tackled by New Zealand's Ben Souness (L) and Tomasi Cama (R) during their semi-final match at the Emirates Airlines Dubai Rugby Sevens in Dubai December 5, 2009. REUTERS/Karl Jeffs (UNITED ARAB EMIRATES SPORT RUGBY) 

Kenya's Humphrey Kayange (top) tackles New Zealand's Tomasi Cama during their quarter-final match at the Emirates Airlines Dubai Rugby Sevens tournament December 5, 2009. REUTERS/Ahmed Jadallah (UNITED ARAB EMIRATES SPORT RUGBY) 

Italy's Steven Bortolussi (C) is tackled by New Zealand's Chad Tuoro and Tomasi Cama(R) during their match on the first day of the IRB Rugby World Cup Sevens in Dubai March 5, 2009. REUTERS/Ahmed Jadallah (UNITED ARAB EMIRATES) 

England's Ollie Phillips (L) is tackled by New Zealand's Tomasi Cama during their semi-final rugby match of the IRB Sevens World Series in Dubai November 29, 2008. REUTERS/Jumana El Heloueh (UNITED ARAB EMIRATES) 

New Zealand's Tomasi Cama (R) passes the ball to teammate Nafi Tuitavake (L) as England's Josua Drauniniu looks on during their semi-final rugby match of the IRB Sevens World Series in Dubai November 29, 2008. REUTERS/Jumana El Heloueh (UNITED ARAB EMIRATES) 

New Zealand's Tomasi Cama (R) runs with the ball as team mate Lote Raikabula (C) reacts during their IRB Sevens World Series match against Australia in Dubai November 28, 2008. REUTERS/Jumana El Heloueh (UNITED ARAB EMIRATES) 

New Zealand's Tomasi Cama (R) is tackled by James Gillenwater of the U.S. during the Hong Kong Sevens rugby tournament in Hong Kong March 29, 2008. REUTERS/Victor Fraile (CHINA) 

New Zealand's Tomasi Cama (back) upends South Africa's Vuyo Zangqa (4) during their rugby match at the IRB (International Rugby Board) Sevens World Series in San Diego, California February 10, 2008. REUTERS/Fred Greaves (UNITED STATES) 

New Zealand's Victor Vito (7) is congratulated by teammate Tomasi Cama after scoring a try against Kenya during their IRB (International Rugby Board) Sevens World Series rugby match in San Diego, California February 10, 2008. REUTERS/Fred Greaves (UNITED STATES) 

New Zealand's Tomasi Cama (C) passes under pressure from Kenya's Victor Oduor (L) and Benedict Nyambu (R) during their rugby match at the IRB (International Rugby Board) Sevens World Series in San Diego, California February 10, 2008. REUTERS/Fred Greaves (UNITED STATES) 

New Zealand's Tomasi Cama scores a try as he is watched by Wales' William Lee in a quarterfinal match of the IRB rugby Sevens World series in Wellington February 2, 2008. REUTERS/Anthony Phelps (NEW ZEALAND) 

New Zealand's Tomasi Cama runs with the ball during their match against South Africa on the final day of the Dubai Rugby Sevens tournament December 1, 2007. REUTERS/Ahmed Jadallah (UNITED ARAB EMIRATES) 

New Zealand's Tomasi Cama (R) passes the ball away from Argentina's Federico Amelong during their match on the final day of the Dubai Rugby Sevens tournament, December 1, 2007. REUTERS/Ahmed Jadallah (UNITED ARAB EMIRATES) 

New Zealand's Tomasi Cama (front) is tackled by Fiji's Semisi Naevo Saukawa during the Cup semi-final at the Hong Kong Sevens rugby tournament in Hong Kong April 1, 2007. REUTERS/Paul Yeung (CHINA) 

New Zealand's Tomasi Cama slips away from England's Tony Roques during their rugby sevens quarter-final match at Westpac Stadium in Wellington February 3, 2006. REUTERS/Anthony Phelps (NEW ZEALAND)