Coach Diego Maradona
Preferred formation 4-4-2/3-4-3
Key man Lionel Messi
Wildcard Carlos Tevez
Goalkeepers Sergio Romero (AZ Alkmaar), Mariano Andujar (Catania), Diego Pozo (Colon)
Defenders: Nicolas Otamendi (Velez Sarsfield), Martin Demichelis (Bayern Munich), Walter Samuel (Inter Milan), Gabriel Heinze (Marseille), Nicolas Burdisso (AS Roma), Clemente Rodriguez (Estudiantes), Ariel Garce (Colon)
Midfielders Jonas Gutierrez (Newcastle), Maximiliano Rodriguez (Liverpool), Javier Mascherano (Liverpool), Juan Sebastian Veron (Estudiantes), Angel Di Maria (Benfica), Javier Pastore (Palermo), Mario Bolatti (Fiorentina)
Strikers Lionel Messi (Barcelona), Gonzalo Higuain (Real Madrid), Martin Palermo (Boca Juniors), Sergio Aguero (Atletico Madrid), Diego Milito (Inter Milan), Carlos Tevez (Manchester City)
GREECE
Coach Otto Rehhagel
Preferred formation 4-3-3
Key man Sotirios Kyrgiakos
Wildcard Theofanis Gekas
Goalkeepers Michalis Sifakis (Aris Salonika), Alexandros Tzorvas (Panathinaikos), Kostas Chalkias (PAOK Salonika)
Defenders Giorgos Seitaridis (Panathinaikos), Loukas Vintra (Panathinaikos), Evangelos Moras (Bologna), Socrates Papastathopoulos (Genoa), Sotiris Kyrgiakos (Liverpool), Avraam Papadopoulos (Olympiakos), Vasilis Torosidis (Olympiakos), Nikos Spiropoulos (Panathinaikos), Stelios Malezas (PAOK Salonika)
Midfielders Kostas Katsouranis (Panathinaikos), Alexandros Tziolis (Siena), Giorgos Karagounis (Panathinaikos), Sotiris Ninis (Panathinaikos), Christos Patsatzoglou (Omonia), Sakis Prittas (Aris Salonika)
Strikers Angelos Charisteas (Nuremberg), Dimitris Salpigidis (Panathinaikos), Pantelis Kapetanos (Steaua Bucharest), Theofanis Gekas (Hertha Berlin), Giorgos Samaras (Celtic)
NIGERIA
Coach Lars Lagerback
Preferred formation 4-4-2
Key man Jon Obi Mikel
Wildcard Obafemi Martins
Goalkeepers Dele Aiyenugba (Bnei Yehuda), Austin Ejide (Hapoel Petah Tikvah), Vincent Enyeama (Hapoel Tel Aviv)
Defenders Dele Adeleye (Sparta Rotterdam), Rabiu Afolabi (Red Bull Salzburg), Elderson Echiejile (Stade Rennes), Chidi Odiah (CSKA Moscow), Danny Shittu (Bolton Wanderers), Taye Taiwo (Olympique Marseille), Joseph Yobo (Everton)
Midfielders Yusuf Ayila (Dynamo Kiev), Dickson Etuhu (Fulham), Sani Kaita (Alania Vladikavhaz), Nwankwo Kanu (Portsmouth), Haruna Lukman (Monaco), John Obi Mikel (Chelsea), Kalu Uche (Almeria), John Utaka (Portsmouth)
Strikers Yakubu Aiyegbeni (Everton), Obafemi Martins (VfL Wolfsburg), Obinna Nsofor (Malaga), Chinedu Obasi (Hoffenheim), Peter Odemwingie (Lokomotiv Moscow)
SOUTH KOREA
Coach Huh Jung-moo
Preferred formation 4-4-2
Key man Park Ji-sung
Wildcard Lee Dong-mook
Goalkeepers Kim Young-kwang (Ulsan), Lee Woon-jae (Suwon), Jung Sung-ryong (Seongnam)
Defenders Kim Dong-jin (Ulsan), Kim Hyung-il (Pohang), Oh Beom-seok (Ulsan), Lee Young-pyo (Al Hilal), Lee Jung-soo (Kashima), Cha Doo-ri (Freiburg) Cho Yong-hyung (Jeju), Kang Min-soo (Suwon)
Midfielders Ki Sung-yong (Celtic), Kim Bo-kyung (Oita, Japan), Kim Nam-il (Tomsk), Kim Jae-sung (Pohang), Kim Jung-woo (Gwangju), Lee Chung-yong (Bolton, England), Ji-sung Park (Manchester United)
Strikers Park Chu-young (Monaco), Ahn Jung-hwan (Dalian, China), Lee Seung-ryul
(Seoul), Yeom Ki-hun (Suwon), Lee Dong-gook (Jeonbuk)