![Marouane Fellaini Belgiumís Marouane Fellaini laughs during a training session at the Mineirao Stadium in Belo Horizonte, Brazil on June 16, 2014.](https://api.time.com/wp-content/uploads/2014/07/8world_cup_hair.jpg?quality=85&w=2400)
By TIME Staff
![Ivory Coast's Serey Die is seen from the back during their 2014 World Cup Group C soccer match against Japan at the Pernambuco arena in Recife Ivory Coast's Geoffroy Serey Die is seen from the back during their match against Japan at the Pernambuco arena in Recife, Brazil on June 14, 2014.](https://api.time.com/wp-content/uploads/2014/07/1world_cup_hair.jpg?quality=75&w=2400)
![Espinoza of Honduras fights for the ball with Switzerland's Behrami and Lichtsteiner during their 2014 World Cup Group E soccer match at the Amazonia arena in Manaus Roger Espinoza of Honduras fights for the ball with Switzerland's Valon Behrami and Stephan Lichtsteiner during their match at the Amazonia arena in Manaus, Brazil onJune 25, 2014.](https://api.time.com/wp-content/uploads/2014/07/3world_cup_hair.jpg?quality=75&w=2400)
![Brazil's Neymar stands during the 2014 World Cup Group A soccer match between Brazil and Mexico at the Castelao arena Brazil's Neymar stands during the 2014 World Cup Group A soccer match between Brazil and Mexico at the Castelao arena](https://api.time.com/wp-content/uploads/2014/07/2world_cup_hair.jpg?quality=75&w=2400)
![Group G - Portugal vs Ghana Ghana player Asamoah Gyan celebrates a goal against Portugal during the match between Portugal and Ghana at the Estadio Nacional in Brasilia, Brazil on June 26, 2014.](https://api.time.com/wp-content/uploads/2014/07/4world_cup_hair.jpg?quality=75&w=2400)
![Italy v Uruguay: Group D - 2014 FIFA World Cup Brazil Mario Balotelli of Italy reacts during the match between Italy and Uruguay at Estadio das Dunas on June 24, 2014 in Natal, Brazil.](https://api.time.com/wp-content/uploads/2014/07/5world_cup_hair.jpg?quality=75&w=2400)
![TOPSHOTS-FBL-WC-2014-MATCH42-ECU-FRA Ecuador's midfielder Christian Noboa wears a bandage after clashing his head during the match between Ecuador and France at the Maracana Stadium in Rio de Janeiro on June 25, 2014.](https://api.time.com/wp-content/uploads/2014/07/11world_cup_hair.jpg?quality=75&w=2400)
![Kyle Beckerman Kyle Beckerman](https://api.time.com/wp-content/uploads/2014/07/7world_cup_hair.jpg?quality=75&w=2400)
![Round of 16 - Brazil vs Chile Dani Alves of Brazil vies with Alexis Sanchez of Chile during the match between Brazil and Chile at the Estadio Mineirao in Belo Horizonte, Brazil on June 28, 2014.](https://api.time.com/wp-content/uploads/2014/07/9world_cup_hair.jpg?quality=75&w=2400)
![Marouane Fellaini Belgiumís Marouane Fellaini laughs during a training session at the Mineirao Stadium in Belo Horizonte, Brazil on June 16, 2014.](https://api.time.com/wp-content/uploads/2014/07/8world_cup_hair.jpg?quality=75&w=2400)
![A backview shows the hair style of Ecuador's Valencia during their 2014 World Cup Group E soccer match against France at the Maracana stadium in Rio de Janeiro A backview shows the hair style of Ecuador's Enner Valencia during their match against France at the Maracana stadium in Rio de Janeiro on June 25, 2014.](https://api.time.com/wp-content/uploads/2014/07/6world_cup_hair.jpg?quality=75&w=2400)
![APTOPIX Brazil Soccer WCup Ivory Coast Japan Ivory Coast's Gervinho is tripped by Japan's Atsuto Uchida during the match at the Arena Pernambuco in Recife, Brazil on June 14, 2014.](https://api.time.com/wp-content/uploads/2014/07/13world_cup_hair.jpg?quality=75&w=2400)
![Brazil Soccer WCup US Portugal Portugal's Cristiano Ronaldo walks on the pitch during the match between the USA and Portugal at the Arena da Amazonia in Manaus, Brazil on June 22, 2014.](https://api.time.com/wp-content/uploads/2014/07/12world_cup_hair.jpg?quality=75&w=2400)
![Brazil's Luiz celebrates after scoring a goal against Colombia during the 2014 World Cup quarter-finals soccer match at the Castelao arena in Fortaleza Brazil's David Luiz celebrates after scoring a goal against Colombia during the match at the Castelao arena in Fortaleza, Brazil on July 4, 2014.](https://api.time.com/wp-content/uploads/2014/07/10world_cup_hair.jpg?quality=75&w=2400)
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