Wales, Uruguay, England, Fiji and Australia make up Pool A - or the 'Group of Death'
It's been dubbed the 'Group of Death,' with Wales being drawn against Uruguay, England, Fiji and Australia in Pool A of the Rugby World Cup.
The top two teams from each pool will progress to the quarter-finals, so it's likely Wales will need to beat either England or Australia to progress to the next stage.
First up: Uruguay
Currently ranked 19th in the world, Uruguay beat Russia over two legs to qualify for the Rugby World Cup. This will be Uruguay's third World Cup, but they've never made it out of the pool stages. They'll be hoping to improve on a record of two wins from seven matches.
Forwards: Alejo Corral, Carlos Arboleya, Oscar Duran, Mateo Sanguinetti, Mario Sagario, Nicolas Klappenbach, German Kessler, Mathias Palomeque, Santiago Vilaseca (c), Franco Lamanna, Jorge Zerbino, Agustin Alonso, Fernando Bascou, Matias Beer, Juan Manuel Gaminara, Alejandro Nieto, Juan de Freitas, Diego Magno.
Backs: Agustin Ormaechea, Alejo Duran, Felipe Berchesi, Manuel Blengio, Andres Vilaseca, Joaquin Prada, Alberto Roman, Francisco Bulanti, Santiago Gibernau, Leandro Leivas, Rodrigo Silva, Gaston Mieres and Jeronimo Etcheverry.
Wales play Uruguay on Sunday 20th September at the Millennium Stadium. Kick off is at 2.30pm, ITV Cymru Wales coverage starts at 1.55pm.
Then, it's the old enemy: England
England sit just above Wales in the world rankings in fourth place. They took the world title back in 2003, before missing out on a double in 2007 when South Africa took the crown. Last time out in 2011, England made it to the quarter final stage.
England had mixed fortunes in their World Cup warm-up games, beating Ireland, after winning one match against France and losing another by five points. Some say getting out of the pool stages will be enough for the hosts this time out.
Forwards: Joe Marler, Mako Vunipola, Kieran Brookes, Dan Cole, David Wilson, Tom Youngs, Rob Webber, Jamie George, Joe Launchbury, Courtney Lawes, George Kruis, Geoff Parling, Chris Robshaw (c), Tom Wood, James Haskell, Billy Vunipola, Ben Morgan.
Backs: Ben Youngs, Richard Wigglesworth, Danny Care, George Ford, Owen Farrell, Brad Barritt, Sam Burgess, Jonathan Joseph, Henry Slade, Jack Nowell, Anthony Watson, Jonny May, Mike Brown, Alex Goode.
Wales play England on Saturday 26th September in Twickenham. Kick off is 8pm - tune in to ITV Cymru Wales from 7.15pm for the build up.
Next up: Fiji
Wales have won, drawn and lost in their last three meetings with Fiji. The Islanders are currently ranked 9th in the world, but face a tough challenge in the group if they're to get out of pool stages.
One of Fiji's World Cup highlights is sending Wales home in the 2007, but it was their 66-0 defeat against Wales in the 2011 that returned the favour.
Forwards: Lee Roy Atalifo, Isei Colati, Campese Ma’afu, Peni Ravai, Manasa Saulo, Sunia Koto, Tuapati Talemaitoga, Viliame Veikoso, Tevita Cavubati, Leone Nakarawa, Api Ratuniyarawa, Nemia Soqeta, Masi Matadigo, Akapusi Qera (c), Malakai Ravulo, Netani Talei, Dom Waqaniburotu, Peceli Yato.
Backs: Nemia Kenatale, Nikola Matawalu, Henry Seniloli, Lepani Botia, Gabby Lovobalavu, Josh Matavesi, Ben Volavola, Vereniki Goneva, Kini Murimurivalu, Nemani Nadolo, Waisea Nayacalevu, Metuisela Talebula, Asaeli Tikoirotuma.
Wales host Fiji at the Millennium Stadium on Thursday 1st October. Kick off is at 4.45pm - our coverage starts at 4pm.
And last, but not least: Australia
Australia represent on of the main threats to Wales in the pool stages. The Wallabies sit second in the world rankings, below New Zealand and boast a proud World Cup record - winning in 1991 and 1999, and as runners-up to England in 2003. The quarter-finals play-offs are the earliest stage the Aussies have left the tournament in its 28 year history. Wales haven't won against Australia in their past eight meetings.
Forwards: Stephen Moore (c), Tatafu Polota-Nau, Greg Holmes, Sekope Kepu, Scott Sio, James Slipper, Toby Smith, Kane Douglas, Dean Mumm, Rob Simmons, Will Skelton, Scott Fardy, Michael Hooper, Ben McCalman, Sean McMahon, Wycliff Palu, David Pocock.
Backs: Will Genia, Nick Phipps, Quade Cooper, Bernard Foley, Kurtley Beale, Matt Giteau, Matt Toomua, Adam Ashley-Cooper, Israel Folau, Rob Horne, Drew Mitchell, Henry Speight, Joe Tomane, Tevita Kuridrani.
Wales play Australia at Twickenham on Saturday 10th October. ITV Cymru Wales coverage starts at 4pm, with kick off at 4:45pm.