National Teams for the 2010 Red Bull FIM Motocross of Nations.

In a recent announcement, Youthstream revealed the lineups for all 32 countries that will compete just outside of Denver on the final weekend of September. The three-rider teams are littered with the biggest names in the sport, including riders from both the U.S.-based Lucas Oil Motocross Championship and the European FIM World Motocross Championship.

Team USA leads the way after capturing its fifth straight win at the prestigious event last season in Italy. Rockstar/Makita Suzuki's Ryan Dungey returns as Team Captain for the U.S. in the MX1 class, just one year after leading the team to victory. Joining the newly crowned 450 Class Champion of the Lucas Oil Motocross Championship are a pair of his American motocross counterparts that will each be making their respective debut at the Olympics of Motocross.

Honda Red Bull Racing's Andrew Short is a veteran of the sport and coincidentally enough, a native of the state of Colorado. Thunder Valley serves as the eight-year pro's home track and there isn't a better place in the world for Short to make his first appearance as a competitor in the MX3 class. Rounding out the impressive Team USA lineup is GEICO Powersports Honda's Trey Canard. The third-year rider had experienced a breakout season in 2010 and has risen to become the top 250cc rider in the U.S., making him the obvious choice for the MX2 class.

Here are the remaining lineups for the 2010 Red Bull FIM Motocross of Nations:

Team France                          Team Brazil                          Team Iceland
Christophe Pourcel – MX1          Marcello Lima – MX1               Gylfi Gudmundsson – MX1
Marvin Musquin – MX2               Cristopher Castro – MX2          Eythor Reynisson – MX2
Xavier Boog – MX3                     Antonio Balbi – MX3                Hjalmar Jonsson – MX3

Team Belgium                        Team Ireland                        Team Lithuania
Steve Ramon – MX1                  Stuart Edmonds – MX1            Mindaugus Kazakevicius – MX1
Jeremy Van Horebeek – MX2     Martin Barr – MX2                    Nerijus Rukstela – MX2
Clement Desalle – MX3Gordon   Crockard – MX3                       Rimantas Pazemeckas – MX3

Team Germany                       Team Latvia                          Team Venezuela
Max Nagl – MX1                        Ivo Steinbergs – MX1               Giovanni Perrotta – MX1
Ken Roczen – MX2                    Matiss Karro – MX2                 Humberto Martin – MX2
Marcus Schiffer – MX3               Lauris Freibergs – MX3             Raimundo Trasolini – MX3

Team Great Britain                 Team Finland                        Team Philippines
Shaun Simpson – MX1              Toni Eriksson – MX1                 Jolet Jao – MX1
Dean Wilson – MX2                   Harri Kullas – MX2                   Ralph Alvarez – MX2
Tommy Searle – MX3                Jon Soderberg – MX3                Kenneth San Andres – MX3

Team Italy                              Team Sweden                        Team Ukraine
Davide Guarneri – MX1              Tom Soderstrom – MX1             Oleksandr Pashchynskyi – MX1
Alessandro Lupino – MX2          Fredrik Noren – MX2                  Mykola Pashchynskyi – MX2
Manuel Monni – MX3                Alex Eriksson – MX3                  Roman Morozov – MX3

Team Australia                      Team Russia                            Team Japan
Brett Metcalfe – MX1                Evgeny Bobrishev – MX1             Akira Narita – MX1
Dean Ferris – MX2                   Alexander Tonkov – MX2             Takuya Mihara – MX2
Jay Marmont – MX3                 Sergey Astaykin – MX3               Yoshitaka Astuta – MX3

Team Estonia                        Team Austria                            Team Costa Rica
Tanel Leok – MX1                    Matthias Walkner – MX1             Johan Mora – MX1
Pritt Ratsep – MX2                   Pascal Rauchenecker – MX2      Alejandro Rojas – MX2
Gert Krestinov – MX3                Gunter Schmidinger – MX3         Roberto Castro – MX3

Team Switzerland                Team Puerto Rico                     Team Ecuador
Greg Wicht – MX1                   Christian Ruiz – MX1                   Felipe Espinosa – MX1
Valentin Guillod – MX2             Zach Osborne – MX2                   Martin Davalos – MX2
Arnaud Tonus – MX3                Kyle Regal – MX3                       Andres Benenaula – MX3

Team New Zealand               Team Canada                           Team Guatemala
Josh Coppins – MX1                Jeremy Medaglia – MX1               Rodolfo Fernandez – MX1
Brad Groombridge – MX2         Kaven Benoit – MX2                     Esteban Castillo – MX2
Ben Townley – MX3                 Kyle Keast – MX3                        Tomas Angel Castillo – MX3

Team Spain                          Team Croatia                             Team Mexico
Jonathan Barragan – MX1         Nenad Sipek – MX1                     Martin Garcia – MX1
Jose Antonio Butron – MX2       Marko Tumbri – MX2                    Alberto Herdia – MX2
Carlos Campano – MX3            Danijel Bozic – MX3                     Giovanni Blanco Victor – MX3

Team Portugal
Rui Goncalves – MX1
Hugo Basaula – MX2
Luis Correia – MX3