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Colombia national team. CONMEBOL (South America). Nickname: Los Cafeteros (the Coffee Growers) / Tricolor.
Colombia is in Group C (with Greece, Ivory Coast, and Japan). ‘2014 FIFA World Cup Group C‘ (en.wikipedia.org).
2014 FIFA World Cup qualification: 2014 is Colombia’s 5th qualification out of a 17 possible qualification attempts.
Colombia qualified for the World Cup in: 1962, 1990, 1994, 1998, 2014.
Previous WC: 1998, Group Stage / 1-0-2.
Highest WC finish: 1990, Round of 16 / 1-1-2.

-Population of Colombia: 47.0 million {2012 estimate}. Capital and largest city: Bogatá, pop. 10.7 million (metro area) {2013 figure}.

Coach of Colombia: José Pékerman. José Pékerman.
Captain of the Colombia squad: Mario Yepes, DF (Atalanta), age 37. Mario Yepes.

[Note: players below reflect final 2014 WC squad selections & stats are updated to after Colombia's 2nd Group Stage game of 19 June 2014.]
Below: Theoretical Best XI for Colombia (with 6 other player-options further below) -

Photo and Image credits above -
Colombia home jersey, photo from worldsoccershop.com.
Map of Colombia on globe, by Addicted04 at ‘File:Colombia (orthographic projection).svg‘ (en.wikipedia.org).
Map of Colombia by Demis at demis.nl.
Coach,
José Pékerman, photo by Jorge Adorino/Reuters via news.yahoo.com.
Goalkeeper,
David Ospina (OGC Nice), photo from Abaca via purepeople.com.
Defenders,
Santiago Arias (PSV), from Getty Images via diarioadn.co/deportes.
Cristián Zapata (Milan), photo by Tullio M. Puglia/Getty Images Europe via zimbio.comzimbio.com.
Mario Yepes (Atalanta), photo by Daniele Buffa/Image Sport via tuttomercatoweb.com.
Pablo Armero (Napoli), photo by Getty Images Europe via dailystar.co.uk/sport/football.
Midfielders,
Fredy Guarín (Inter), photo by Claudio Villa via mirror.co.uk/sport.
Abel Aguilar (Toulouse), photo from nuevoestadio.com.
Carlos Sánchez (Elche), photo by Manuel Queimadelos Alonso/Getty Images Europe via zimbio.com.
Víctor Ibarbo FW/W (Cagliari), photo by Giuseppe Bellini/Getty Images Europe via zimbio.com.
Forwards,
James Rodríguez (Monaco), photo by Jack Phillips/CameraSport via camerasport.photoshelter.com.
Radamel Falcao (Monaco), photo by Bob Edme/AP via sportsillustrated.cnn.com.
Other player-options, ,
Juan Cuadrado MF/RW (Fiorentina), photo from 1.skysports.com/football/live/match.
Teófilo Gutiérrez FW (River Plate), photo from infobae.com/2014/01/02/teofilo-gutierrez-perdio-el-avion-colombia-y-es-una-incognita-su-presencia-el-primer-entrenamiento-river.
, photo from barcaforum.com/showthread/Juan-Camilo-Zuniga.
Jackson Martinez FW/W (Porto), photo by Valerio Pennicino/Getty Images Europe via zimbio.com.
Juan Quintero CM/AM (Porto), photo by Getty Images via espndeportes.espn.go.com/news/story.
Alexander Mejía DM/CM/RM (Atlético Nacional), photo unattributed at colombia.com/futbol.

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Thanks to the contributors at ‘2014 FIFA World Cup qualification‘ (en.wikipedia.org).
Thanks to the contributors at ‘Colombia national football team‘ (en.wikipedia.org).
Thanks to http://www.transfermarkt.com/en/, for player-position details.