The Ireland Under-20s, sponsored by PwC, have regular rivals France and Wales along with Fiji as opposition in Pool B of the IRB Junior World Championship. Check out the tournament website's preview ahead of kick-off in New Zealand on Monday.
Seeding for 2014 JWC: 8 Best finish: Fifth (2012) Worst finish: Ninth (2008, 2010) JWC match record: Played 30/Won 14/Lost 16 JWC points/tries scored: 707/73
JWC graduates: 15 (Dave Kearney, Ian Madigan, Stephen Archer, Jack McGrath, Peter O'Mahony, Conor Murray, Rhys Ruddock, Jordi Murphy, Simon Zebo, Martin Moore, Craig Gilroy, Luke Marshall, Paddy Jackson, Iain Henderson and Stuart Olding) Most-capped JWC graduate:Conor Murray (29 Tests - 27 Ireland, 2 Lions)
Did you know?: In 2010, Ireland Under-20 captain Rhys Ruddock became the only player to be called away from a JWC to join up with the senior team. He duly made his Test debut against the Wallabies.
Head coach:Mike Ruddock Captain:Jack O'Donoghue
One to watch:Jack O'Donoghue
The strong carrying number 8 has taken on the role of captain for the tournament after fellow forward Sean O'Brien was ruled out through injury.
Man-of-the-match in Ireland's win over Scotland in the Six Nations after a two-try haul, this will be his second Junior World Championship.
Seeding for 2014 JWC: 2 Best finish: Runners-up (2013) Worst finish: Seventh (2010, 2011) JWC match record: Played 30/Won 20/Lost 10 JWC points/tries scored: 801/89
Did you know?:Leigh Halfpenny is something of a trailblazer for JWC graduates, the first to play for the British & Irish Lions (2009), the top Test points scorer (444) and scorer of the most Test points by a Lions players in a single series (49).
Head coach:Byron Hayward Captain:Steffan Hughes
One to watch:Ashley Evans
The Ospreys winger scored two tries in the 2013 Junior World Championship final, the first after collecting a sublime cross-field kick from Sam Davies - just as he had in the dying seconds of the semi-final against South Africa - but still ended up on the losing side.
A mainstay of the Wales Under-20 squad in 2013, he returned from a spell with Wales on the HSBC Sevens World Series during the Six Nations and his pace and experience will be vital to hopes of success in New Zealand.
Seeding for 2014 JWC: 5 Best finish: Fourth (2011) Worst finish: Sixth (2008, 2012) JWC match record: Played 30/Won 20/Lost 10 JWC points/tries scored: 838/97
Did you know?:Pierre Bernard holds the record for most points scored in a single Junior World Championship match with 33 against Wales in the fifth place play-off in 2009.
Head coach:Gérald Bastide Captain:François Cros
One to watch: Yacouba Camara
It would not have been a surprise had the Toulouse flanker been across the Tasman in Australia with the senior French team, such has been the impression he has made in his first season in the Top 14.
A striking presence on the pitch, Camara was one of France's best players when they hosted the Junior World Championship in 2013.
Seeding for 2014 JWC: 11 Best finish: Sixth (2011) Worst finish: 14th (2008 when 16 teams in tournament) JWC match record: Played 30/Won 8/Lost 22 JWC points/tries scored: 528/64
JWC graduates: 11 Most-capped JWC graduate: Niko Matawalu (14 Tests)
Did you know?: The last two tournaments have seen Fiji needing to win on the final day to avoid relegation to the Junior World Rugby Trophy, which they did against Italy and USA.
Head coach:Salimoni Ravouvou Captain:Akuila Tabualevu
One to watch:Adrea Cocagi
The inside centre has benefited from his time with Top 14 club Stade Français and will bring invaluable experience to the Fijian side from his two years in France. A strong runner, he is also a dependable player in defence.
They needed a 27-point winning margin against Scotland. They got that and more. The Ireland Women's team captured their second Women's RBS 6 Nations title in style at Broadwood Stadium - relive their Championship winning day in our exclusive video.
It was nail-biting, nerve shredding and epic! Relive Ireland's RBS 6 Nations Championship day from the squad's arrival at Murrayfield to the trophy presentation in our exclusive tunnel and pitch cam video.
Larissa Muldoon, now a two-time Women's RBS 6 Nations winner, is part of an all-Donegal half-back pairing for the Ireland Women. She spoke to Irish Rugby TV about the developing clubs in her own county.
Ireland Women's lock Orla Fitzsimons describes how she was a supporter in the stands for the 2013 Grand Slam success, and now, two years on, she has a Women's RBS 6 Nations winners' medal around her neck.
Niamh Briggs had a day to remember as she captained the Ireland Women's team to RBS 6 Nations title glory. The Waterford star, who scored the first try in the 73-3 win over Scotland, spoke to Irish Rugby TV afterwards.
Paying tribute to the Ireland supporters at Murrayfield, RBS 6 Nations winner Luke Fitzgerald said: "Thanks a million to the fans from the all guys. They were fantastic. We really felt their support out there, they were the '16th man' and helped us get over the line."
Sean O'Brien scored two tries and produced a man-of-the-match performance as Ireland beat Scotland 40-10 to finish top of the table and retain the RBS 6 Nations title. He spoke to Irish Rugby TV afterwards.
Speaking to Irish Rugby TV after the trophy presentation, RBS 6 Nations winner Robbie Henshaw said: "Words can't describe it...just the whole atmosphere, everyone in the stadium, just the way it ended out. It was pretty intense, the heart was rushing."
Enjoying the post-match celebrations at Murrayfield, RBS 6 Nations winner Rory Best said: "It's been a bit of an emotional roller-coaster, the last hour. The crowd have been absolutely incredible. We're just delighted to give something back to them."