Previously, players with 2 or more nationalities could only change their national team colors when they had not played for the official squad. However, recently, the World Football Federation has decided to change this rule, allowing young players to choose more flexibly.
Voetbal International reported that FIFA will vote to pass a law that allows it players under the age of 21, playing less than 3 matches for a team, are allowed to change to another team. These 3 matches are included in the official tournaments. Young star Mohamed Ihattaren can be taken as an example of this new law.

Young players can re-select the team even though they have played on the field.
Ihattaren is considered one of the brightest young stars of world football, he has two nationalities, Netherlands and Morocco. The 18-year-old midfielder has played for the youth levels of the Orange Vortex. At the end of last year, he announced his future commitment to the Dutch team, having just been called up for the first time. However, if he finds that he cannot compete for a place in the current star-studded squad of the orange shirt team, he can move to Morocco.
Voetbal International made it clear that even if a player is only allowed to play for 1 minute, it will also be counted as 1 match, a player can only change his shirt color within 3 years from his debut for the first team.
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Thanh Vu | 14:58 03/09/2020