Gianluca Vialli has died at the age of 58 after being diagnosed with cancer.
The tragic news of the former footballer's passing was confirmed the Italian Football Federation.
In a statement, the federation's president, Gabriele Gravina, said it was a devastating loss.
He said: "I am deeply saddened. I hoped until the end that he would be able to perform another miracle, yet I am comforted by the certainty that what he did for Italian football and the blue shirt will never be forgotten.
"Without beating about the bush: Gianluca was a splendid person and he leaves a void that cannot be filled, in the national team and in all those who have appreciated his extraordinary human qualities."
In a glittering career that spanned two decades, Vialli won every major honour there was in Europe, including the Italian Serie A with Sampdoria and Juventus, the Champions League, the UEFA Cup, and the UEFA Cup Winner's Cup.
He also played in England with Premier League side Chelsea, where he became a fan favourite and won the FA Cup, League Cup and UEFA Cup Winner's Cup.
Vialli also played 59 times for his country, scoring 16 goals, and playing at the 1986 and 1990 World Cups, where he helped Italy to third place.
In 2017, he was diagnosed with pancreatic cancer, before being given the all clear in 2020.
He then went on to win the European Championships title with Italy the following year, working as the side's delegation chief as they beat England in the final at Wembley.
Sadly, however, in 2021, Vialli was re-diagnosed with the disease and it was announced last month that he had stepped down from his position with the national team.
Since news of his death was announced, the world of sport has come out to offer its condolences to Vialli's family and friends.
Chelsea Football Club wrote in a tweet: "You’ll be missed by so many.
"A legend to us and to all of football. Rest in peace, Gianluca Vialli."
Simon Thomas said: "Not just a brilliant player; but a real gentleman. What a sad loss. Rest well Gianluca Vialli."
"Ciao Gianluca, you will forever be remembered," wrote the Italian national team.
Chris Kamara put: "Devastated to hear the news. RIP Luca - a fabulous career and a great fella. A wonderful life has been cut short. I am well and truly gutted.
"Gianluca Vialli it was an honour to have known you."
Featured Image Credit: REUTERS/Aflo Co. Ltd./Alamy
Dominic Smithers