Factbox: Cameroon

Colours: Yellow shirts, blue shorts, green socks

Nickname: Indomitable Lions

Previous World Cup appearances: 5: 1982, 1990, 1994, 1998, 2002

Best World Cup performance: Reached the quarter-finals in 1990

Coach: Paul Le Guen

Most capped player: Rigobert Song 135

Top goalscorer: Samuel Eto'o 42

Squad:

Idriss Carlos Kameni (Espanyol, Spain). Goalkeeper. Born Feb. 18 1984. Caps 54. Goals 0.
Was in the squad when Cameroon last played at the World Cup in 2002 and was an Olympic gold-medal winner with the under-23 side at the Sydney Games 10 years ago. A spectacular shot stopper who has been voted best goalkeeper in the Spanish league, where has been on Espanyol's books for six seasons.

Guy Roland Ny Assembe (Valenciennes, France). Goalkeeper. Born Feb. 28 1986. Caps 0.
Made his club debut a year ago after going on loan to Valenciennes. More regular action in Ligue 1 this season saw him selected by Cameroon as a back-up goalkeeper for the African Nations Cup finals in Angola, although he still has to make his international debut.

Hamidou Souleymanou (Kayerispor, Turkey). Goalkeeper. Born Nov. 22 1973. Caps 20. Goals 0.
Longest standing back-up goalkeeper, who has been playing in Turkey for 10 years. He is a large, imposing presence and at 36 will be among the oldest competitors at the World Cup.

Patrick Tignyemb (Bloemfontein Celtic, South Africa). Goalkeeper. Born June 14 1985. Caps 0.
Named the best player at his South African club this season. A popular choice for his exaggerated antics in goal and flamboyant James Brown-style hairstyle. Played for Cameroon's under-23 side at the Beijing Olympics two years ago.

Patrick Abouna (Astres Douala). Defender. Born Sept. 27 1990. Caps 1. Goals: 0.
First home-based player in some time to make the Cameroon team and was used in March's friendly against Italy in Monte Carlo. He almost missed the trip because he did not have a passport.

Benoit Assou-Ekotto (Tottenham Hotspur, England). Defender. Born March 24 1984. Caps 6. Goals 0.
Left-sided defender who has helped his club to win a UEFA Champions League place for next season. Cameroon had chased him for several years but he preferred to hold out for a chance to play for France, where he was born to a Cameroonian father and French mother. Eventually debuted for the Indomitable Lions in March last year.

Sebastien Bassong (Tottenham Hotspur, England). Defender. Born July 9 1986. Caps 4. Goals 0.
Former French under-21 international who debuted at the same time as coach Paul Le Guen last August. The coach left him out of the Nations Cup tournament in Angola, sparking a few angry interviews, but Bassong seems to have done his World Cup chances no harm.

Gaetan Bong (Valenciennes, France). Defender. Born April 25 1988. Caps 0.
Born in Cameroon but brought up in France, where he spent his formative years at Metz. The inclusion of the left-sided defender in the 30-man preliminary list for the 2010 World Cup is his first call-up to the squad,

Aurelien Chedjou (Lille, France). Defender. Born June 20 1985. Caps 7. Goals 0.
First capped last year and already used in both central defence and as a defensive midfielder in the national side. First went to Europe to play at Valencia but drifted at several lower league clubs in France after failing to initially make the grade before emerging at Lille three seasons ago.

Geremi (Ankaragucu, Turkey). Defender. Born Dec. 20 1978. Caps 112. Goals 13.
Well-travelled fullback who has lost some of the pace and marauding style which made him a stalwart of the team for more than a decade. Still a key set-piece specialist but no longer guaranteed a place in the squad. His previous clubs include Real Madrid and Chelsea.

Boukar Makadji (Al Nahda, Oman). Defender. Born Jan. 19 1984. Caps 0.
Recently moved to the Middle East after a successful domestic career, including competing in the African Champions League final two years ago with Coton Sport of Garoua.

Nicolas Nkoulou (Monaco). Defender. Born March 27 1990. Caps 13. Goals 0.
The pretender to the role at the heart of defence long held by Song. Won his first cap at 18 and has had an impressive first full season at Monaco in Ligue 1.

Rigobert Song (Trabzonspor, Turkey). Defender. Born July 1 1976. Caps 135. Goals 4.
Played at three previous World Cups, first as a teenager at the 1994 finals in the U.S. Was stripped of the captaincy when Le Guen took over as coach last August and lost his place in the starting line-up at the Nations Cup in January.

Achille Emana (Real Betis, Spain). Midfielder. Born June 5 1982. Caps 32. Goals 5.
Hard-working midfielder who can impose himself on a game and command play or be frustratingly absent. First played for Cameroon in 2003 after signing for Toulouse in France.

Enoh Eyong (Ajax Amsterdam, Netherlands). Midfielder. Born Aug. 1 1976. Caps 10. Goals 0.
Industrious defensive midfielder with an impressive work rate who caught Marco van Basten's eye and was signed for Ajax from their South African affiliate in Cape Town. He will be familiar with World Cup conditions having spent two seasons in South Africa's Premier Soccer League.

Jean Makoun (Olympique Lyon, France). Midfielder. Born May 29 1983. Caps 47. Goals 3.
Formidable midfielder who was a big-ticket buy for Lyon after six seasons at Lille. He has played in the last Champions League campaigns but he lost his key role for the Cameroon side after a surprising slip in form during the 2008 Nations Cup finals in Ghana.

Joel Matip (Schalke 04, Germany). Midfielder. Born Aug. 8 1991. Caps 1. Goals 0.
Was selected to play for Cameroon at the Nations Cup in Angola in January but did not show up for the tournament because of school exams. Made his debut against Italy in March. German-born defensive midfielder, who could also be used in defence.

Georges Mandjeck (Kaiserslautern, Germany). Midfielder. Born Dec. 9 1988. Caps 3. Goals 0.
Went to January's Nations Cup tournament in Angola uncapped but finished up in the starting line-up by the time Cameroon were eliminated. Played a regular role for Kaiserslautern in their successful promotion campaign back to the German Bundesliga but likely to return next season to VfB Stuttgart at the end of his loan spell.

Stephane Mbia (Olympique Marseille, France). Midfielder. Born May 20 1986. Caps 29. Goals 3.
A league winner with his club in France but his place in the national squad is in peril. He has lost his role as the midfield hard man and is in a public debate with Cameroon's coach about playing at right back. Le Guen sees him as a solution for a troublesome position but Mbia has been telling reporters he is not keen.

Patrick Mevoungou (Canon Yaounde). Midfielder. Born Feb. 15 1986. Caps 0. Goals 0.
Former junior international, who is the midfield linchpin of the country's biggest club. He went to play in Macedonia but returned home after a serious knee injury. Also played at Dalian Shide in China.

Marcel Ndjeng (FC Augsburg, Germany). Midfielder. Born Nov. 6 1983. Caps 0.
German-born midfielder who has a Cameroonian father. Spent the season on loan from Hamburg to FC Augsburg.

Landry Nguemo (Glasgow Celtic, Scotland). Midfielder. Born Nov. 28 1985. Caps 17. Goals 2.
Nguemo plays in driving box-to-box style but has several players ahead of him in the queue for the role in the Indomitable Lions. Moved to Scotland on loan from Nancy but there has been no sign of a permanent move.

Alexandre Song (Arsenal, England). Midfielder. Born Sept. 9 1987. Caps 20. Goals 0.
A key part of the side these days with his ability to win the ball and control the midfield. Arsene Wenger spotted him playing for Bastia but it took a while before he made the breakthrough at Arsenal. Nephew of Rigobert.

Vincent Aboubakar (Coton Sport). Forward. Born Jan. 22 1992. Caps 0.
Teenager uncovered by coach Le Guen during a recent scouting trip and training camp for home-based players. His surprise call-up comes at the same time as he is set to go to France and join Valenciennes next season.

Eric Choupo Moting (FC Nuremburg, Germany). Forward. Born March 23 1989. Caps 0.
German-born with a Cameroonian father, who is still awaiting FIFA permission to play for the Indomitable Lions after previously winning under-21 caps for Germany. On loan this season from Hamburg to Nuremburg, where he scored five goals in a relegation-haunted season.

Samuel Eto'o (Barcelona, Spain). Forward. Born March 10 1981. Caps 91. Goals 42.
A record-equalling three-time winner of the African Footballer of the Year and on the brink of a third Champions League winners' medal. Cameroon turned to him to captain their team after they looked in danger in the qualifying campaign, a challenge the usually tempestuous player rose to with great aplomb.

Mohamadou Idrissou (SC Freiburg, Germany). Forward. Born March 8 1980. Caps 28. Goals 6.
Tall striker who has looked the best player to partner Eto'o over the years but never had a settled run in the team. Has scored 22 goals at Freiburg in the Bundesliga over the last two season but he has made it clear he wants to leave after returning from the World Cup.

Dorge Kouemaha (FC Brugge, Belgium). Forward. Born June 28 1983. Caps 3. Goals 0.
Journeyman striker who hails from the English-speaking part of Cameroon and has also played in Greece, Hungary, Germany and, since the start of the season, in Belgium. Scored 16 goals in his first season in Brugge as the club finished second in the league.

Achille Webo (Mallorca, Spain). Forward. Born Jan. 20 1982. Caps 38. Goals 14.
Webo holds the unusual distinction of being the only African footballer to have played in both the Libertadores Cup in South America and the UEFA Champions League. He left home to begin his search to become professional at Nacional in Uruguay before moving to Spain eight years ago.

Jacques Zoua (FC Basle, Switzerland). Forward. Born Sept. 6 1991. Caps 0.
Promoted from the Cameroon under-20 side that competed in last year's World Youth Championship in Egypt. Made his debut in Switzerland straight afterwards.