Rugby

A fan of Fiji celebrates victory after his side won the Rugby Sevens Men's Gold Medal Match between Fiji and Great Britain at the Deodoro Stadium on the sixth day of the Rio Olympic Games, Brazil

Owen Humphreys/PA

A fan of Fiji celebrates victory after his side won the Rugby Sevens Men’s Gold Medal Match between Fiji and Great Britain at the Deodoro Stadium on the sixth day of the Rio Olympic Games, Brazil

Fiji's Rebecca Tavo, left, scores a try as USA's Kelly Griffin, defends during the women's rugby sevens match at the Summer Olympics in Rio de Janeiro, Brazil, Monday, Aug. 8, 2016. (AP Photo/Themba Hadebe)

Themba Hadebe/AP

Fiji’s Rebecca Tavo, left, scores a try as USA’s Kelly Griffin, defends during the women’s rugby sevens match at the Summer Olympics in Rio de Janeiro, Brazil

Rugby Union - Rugby Test - England v Australia's Wallabies  - Sydney, Australia - 25/06/16.  Australia's Israel Folau scores a try in the second half.     REUTERS/Jason Reed

Jason Reed/Reuters

Australia’s Israel Folau scores a try in the second half as England play Australia’s Wallabies

New Zealand v Tonga - IRB Rugby World Cup 2015 Pool C...Rugby Union - New Zealand v Tonga - IRB Rugby World Cup 2015 Pool C - St James' Park, Newcastle, England - 9/10/15  Fans is fancy dress before the game

Andrew Yates/Reuters

Fans is fancy dress arrive before the game between New Zealand and Tonga at the IRB Rugby World Cup 2015 at St James’ Park, Newcastle, England

Fiji perform the Cibi before the Rugby World Cup match at the Millennium Stadium, Cardiff

Andrew Matthews/PA

Fiji perform the Cibi before the Rugby World Cup match at the Millennium Stadium, Cardiff

Gorillas with rugby balls

Ben Birchall/PA Wire

Komale, a Western Lowland Gorilla, inspects a rugby ball that has been placed into the enclosure at Bristol Zoo as part of its enrichment programme.

Sri Lankan schoolchildren play rugby on a beach during sunset in Colombo on July 3, 2013. Sri Lanka's youth population aged 10 to 19 make up some 15 percent of its 20 million people.

Lakruwan Wanniarachchi/AFP

Sri Lankan schoolchildren play rugby on a beach at sunset in Colombo on Wednesday. Sri Lanka‘s youngsters aged between 10 and 19 make up some 15 per cent of the country’s 20m population

Rugby Union - 2013 British and Irish Lions Tour - Australia Recovery Session Session - Coogee Beach, Sydney...Australia's Christian Leali'ifano (left) and Israel Folau (right) during a recovery session at Coogee Beach, Sydney in Australia. PRESS ASSOCIATION Photo. Picture date: Monday 1st July 2013. See PA story RUGBYU Lions. Photo credit should read: David Davies/PA Wire. RESTRICTIONS: Editorial use only, Non-commercial use, Photographs cannot be altered or adjusted other than in the course of normal journalistic or editorial practice (including cropping/manipulation for purpose of formatting or superimposition of captions/headings). Call 44 (0)1158 447447 for further information.

David Davies/PA

Rugby players Christian Leali’ifano (left) and Israel Folau (right) during a recovery session at Coogee Beach, Sydney in Australia.

Toby Faletau...Toby Faletau of the British and Irish Lions cools himself by fans during a training session in Hong Kong Friday, May 31, 2013. The rugby team will play with the Barbarians at a XV-a-side rugby match on Saturday. (AP Photo/Kin Cheung)

Kin Cheung/AP

Tongan Rugby player Toby Faletau of the British and Irish Lions team cools off using fans during a training session in Hong Kong on Friday. The rugby team will play the Barbarians at a XV-a-side rugby match on Saturday