Atalanta midfielder Andrea Rinaldi has died from a brain aneurysm aged 19.
The teenager fell ill on Friday while training at home during the coronavirus lockdown and was taken to hospital in Varese, where he passed away on Monday.
Rinaldi had been on loan at Serie D club Legnano from Atalana.
The fourth-tier club confirmed the news on their website, where Rinaldi has been described as "a golden boy, exemplary in life and play".
The statement read: "AC Legnano, the city and the entire football universe, at all levels, today live one of their most upsetting days.
"Andrea Rinaldi, our warrior, has left us. An aneurysm snatched him in the prime of life, with a life ahead of him and with a career that promised bright goals.
"A sudden and shocking tragedy, impossible even to imagine."
Legnano chairman Giovanni Munafo added: "When Andrea came to training, he came first to greet me. This is a memory I will carry in my heart.
"An extraordinary boy, an example for everyone. On behalf of the club, I express my deepest condolences to the family.
"We are sure that Andrea, from up there, will be the usual warrior like always, who fought in the middle of the pitch to bring the Legnano fans joy."
Rinaldi joined Atalanta aged 13 and worked his way through the club's academy.
A statement from Atalanta read: "Just as on the pitch, you were always the last to surrender, this time too you fought with all your might not to fly away too soon.
"But that kind smile of yours will always remain alive in the hearts of those who had the good fortune to meet you."
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