Tributes have poured in from across Spanish football following the news.
A club statement said Martin had passed away in her home town of Ayamonte, in Southern Spain, on Wednesday.
Sporting de Huelva’s Liga F game against Sevilla, scheduled for today, has been postponed.
The club have also suspended academy training this week.
Spanish giants Real Madrid paid tribute to the academy player on social media.
They wrote on Twitter: “Real Madrid, its president and its Board of Directors deeply lament the passing of Estrella Martín, @sportinghuelva’s youth-team player.
“The club wishes to express its condolences and affection to her family, her teammates, her club and her loved ones.
“Rest in peace.”
More to follow…
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