His request to play for Spain instead of France at Euro 2020 this summer has been approved, sources at the Spanish football federation (RFEF) confirmed on Tuesday.
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The Spanish Football Federation has sent the paperwork to FIFA and are awaiting the final approval from the world governing body, and he could play at this summer's tournament alongside team-mate Eric Garcia.
The 26-year old was born in the south-western French town of Agen but has never appeared for the national team.
Laporte is understood to have dual nationality and is of Basque descent through his great-grandparents.
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This is evident in his time at Athletic Bilbao -- who are known to only allow Spanish players in their ranks.
He joined Athletic Club as a 16-year-old and spent six seasons with the Spanish side before his switch to City in 2018.
He was first called into the France national squad in October 2016 but is still to win a senior cap.