Images from Saturday's matches at the World Cup
Referee Milorad Mazic from Serbia shows a yellow card to Iran's Javad Nekounam, right, during the group F World Cup soccer match between Argentina and Iran at the Mineirao Stadium in Belo Horizonte, Brazil.Jon Super/The Associated Press
Argentina's Lionel Messi jogs over to take a corner during the group F World Cup soccer match between Argentina and Iran at the Mineirao Stadium in Belo Horizonte, Brazil.Jon Super/The Associated Press
Argentina's Lionel Messi fights for the ball with Iran's Javad Nekounam, left, during their 2014 World Cup Group F soccer match at the Mineirao stadium in Belo Horizonte.KAI PFAFFENBACH/Reuters
Argentina's goalkeeper Sergio Romero makes a save during their 2014 World Cup Group F soccer match against Iran at the Mineirao stadium in Belo Horizonte.KAI PFAFFENBACH/Reuters
Iran's goalkeeper Alireza Haghighi, centre, fails to save a goal by Argentina's Lionel Messi (not seen) during their 2014 World Cup Group F soccer match at the Mineirao stadium in Belo Horizonte.SERGIO MORAES/Reuters
Argentina's Lionel Messi celebrates after scoring a goal during the 2014 World Cup Group F soccer match between Argentina and Iran at the the Mineirao stadium in Belo Horizonte.SERGIO PEREZ/Reuters
Ghana's Sulley Muntari celebrates after his team scored their second goal of the game during the group G World Cup soccer match between Germany and Ghana at the Arena Castelao in Fortaleza.Themba Hadebe/The Associated Press
Germany's Miroslav Klose, centre, scores his side's second goal during the group G World Cup soccer match between Germany and Ghana at the Arena Castelao in Fortaleza, Brazil.Frank Augstein/The Associated Press
Germany's Thomas Mueller collides with Ghana's John Boye during their 2014 World Cup Group G soccer match at the Castelao arena in Fortaleza June 21.MIKE BLAKE/Reuters
Ghana's Sulley Muntari helps a spectator off the pitch during the 2014 World Cup Group G soccer match between Germany and Ghana at the Castelao arena in Fortaleza.EDDIE KEOGH/Reuters
Germany's Thomas Mueller, left, argues with Ghana's Harrison Afful after a tackle during their 2014 World Cup Group G soccer match at the Castelao arena in Fortaleza.Marcelo del Pozo/Reuters
Nigeria's Juwon Oshaniwa, left, is fouled by Bosnia's Muhamed Besic during their 2014 World Cup Group F soccer match at the Pantanal arena in Cuiaba.ERIC GAILLARD/Reuters
Nigeria's Peter Odemwingie scores a goal during their 2014 World Cup Group F soccer match against Bosnia at the Pantanal arena in Cuiaba June 21.MICHAEL DALDER/Reuters
Bosnia's Edin Dzeko heads the ball next to Nigeria's Kenneth Omeruo (22) and Shola Ameobi as he misses a chance to score a goal during their 2014 World Cup Group F soccer match at the Pantanal arena in Cuiaba.MICHAEL DALDER/Reuters
Nigeria's Efe Ambrose fights for the ball with Bosnia's Tino Sven Susic, rigth, during their 2014 World Cup Group F soccer match at the Pantanal arena in Cuiaba.UESLEI MARCELINO/Reuters