Fixtures (times BST):

June 15 Rio de Janeiro, 2300: Argentina v Bosnia-Herzegovina

June 16 Curitiba, 2000: Iran v Nigeria

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June 21 Belo Horizonte, 1700: Argentina v Iran

June 21 Cuiaba, 2300: Nigeria v Bosnia-Herzegovina

June 25 Porto Alegre, 1700: Nigeria v Argentina

June 25 Salvador, 1700: Bosnia-Herzegovina v Iran

Argentina

How they qualified

Conmebol winners, ahead of Colombia and Chile.

Key player

Who else but Lionel Messi? Unstoppable forward has scored 42 goals in 40 matches for club and country this calendar year.

Dangerman

Take your pick from Gonzalo Higuain, Carlos Tevez, Sergio Aguero, Ezequiel Lavezzi, the list goes on.

World Cup best

Winners in 1978 and 1986.

Premier League interest

Manchester City’s Pablo Zabaleta and Sergio Aguero, Newcastle defender Fabio Coloccini, plus Tottenham winger Erik Lamela.

Most expensive player

Hernan Crespo - £35m, from Parma to Lazio

WORLD CUP 2014 INTERACTIVE GUIDE: The groups, fixtures, route to the final, venues and past winners

Bosnia and Herzegovina

How they qualified

Uefa Group G winners, finishing ahead of Greece on goal difference.

Key player

Miralem Pjanic (Roma)- The Roma attacking midfielder will provide the flair in the Bosnia midfield.

Dangerman

Edin Dzeko (Manchester City)- Despite being in and out of the Manchester City side, the powerful front-man still managed to score 10 goals in the qualifying stage for Bosnia.

World Cup best

Of the 21 qualified countries so far, they are the only ones making their first World Cup finals appearance.

Premier League interest

Stoke goalkeeper Asmir Begovic and Dzeko.

Most expensive

Dzeko - £27m, Wolfsburg to Manchester City, 2011

Iran

How they qualified

Winners of the AFC Fourth Round Group A, ahead of South Korea.

Key player

Javad Nekounam (Esteghlal F.C)- Known for his midfield box-to-box style, the former Osasuna man will be key for Iran.

Dangerman

Reza Ghoochannejhad (Standard Liege)- The Liege striker has been on fire for his club side and appears to be the main dangerman for his country as well.

World Cup best

Reached the finals three times, but have never got past the group stage.</b><br/>

Premier League interest

Powerful Fulham striker Ashkan Dejagah.

Most expensive?

Ali Daei - £2.5m, from Arminia Bielefeld to Bayern Munich, 1998

Nigeria

How they qualified

CAF Third Round Winners

World Cup best

Round of 16 (1994, 1998)

Key player

Victor Moses (Chelsea) The winger is currently on loan at Liverpool.

Dangerman

Victor Obinna (Lokomotiv Moscow) The striker has scored 11 goals in 44 games so far for Nigeria.

Premier League interest

Chelsea’s John Obi Mikel, Moses, plus Newcastle target man Shola Ameobi.

Most expensive

Mikel, Lyn Oslo to Chelsea, £16m, 2006

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