Vote: The best hairstyle at the World Cup

Brazil striker Neymar has gone in for a new hairstyle following his double strike in the World Cup opener against Croatia.

Here's Neymar's new look during a training session at Castelao Stadium in Fortaleza, on June 16, 2014, ahead of the match against Mexico.

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Kyle Beckerman of the United States celebrates after defeating Ghana 2-1 in the Group G World Cup match at Estadio das Dunas on June 16, 2014 in Natal, Brazil.

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Italy striker Mario Balotelli reacts during the Group D match against England at Arena Amazonia on June 14, 2014 in Manaus.

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Benoit Assou-Ekotto of Cameroon controls the ball during the Group A match against Mexico at Estadio das Dunas on June 13, 2014 in Natal.

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Portugal's Raul Meireles in action during the Group G match against Germany at Arena Fonte Nova on June 16, 2014 in Salvador.

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Asamoah Gyan, captain of Ghana, speaks to the media at Estadio das Dunas on June 15, 2014 in Natal.

The figure 3 on his head is his jersey number. The player says it's his favourite number and it's powerful!

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Marouane Fellaini of Belgium celebrates scoring his team's first goal during the Group H match against Algeria at Estadio Mineirao on June 17, 2014 in Belo Horizonte.

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Ecuador's Felipe Caicedo (right) dribbles past Granit Xhaka of Switzerland during the Group E match at Estadio Nacional on June 15, 2014 in Brasilia.

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Juan Carlos Paredes of Ecuador runs with the ball during the Group E match against Switzerland and Ecuador at Estadio Nacional on June 15, 2014 in Brasilia.

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Cameroon goalkeeper Charles Itandje gestures during the Group A match against Mexico at Estadio das Dunas on June 13, 2014 in Natal.

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Granit Xhaka of Switzerland controls the ball during the 2014 FIFA World Cup Brazil Group E match against Ecuador at Estadio Nacional on June 15, 2014 in Brasilia.

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Ermin Bicakcic of Bosnia and Herzegovina goes for a tackle during the Group F match against Argentina at Maracana on June 15, 2014 in Rio de Janeiro.

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Gervinho of the Ivory Coast (left) celebrates after scoring his team's second goal with team mate Wilfried Bony during the Group C match between the Ivory Coast and Japan at Arena Pernambuco on June 14, 2014 in Recife.

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Alex Song of Cameroon looks on during the Group A match between Mexico and Cameroon at Estadio das Dunas on June 13, 2014 in Natal.

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Mexico's goalkeeper Guillermo Ochoa attends a training session at the Dunas Arena soccer stadium in Natal, on June 12, 2014.