Fiorentina have retired the No 13 shirt formerly worn by captain Davide Astori following the death of the 31-year-old.
The Serie A club announced the gesture on Tuesday morning, while confirming Astori`s former club Cagliari would also be taking the same action.
Astori died suddenly on Sunday morning in a Udine hotel, where La Viola were basing themselves ahead of Sunday`s Serie A match against Udinese.
All Serie A games were postponed as a result and tributes from the world of football soon began to pour in for the player.
In honour of Davide 's memory, and have decided to retire the No.13 shirt. ⚜️— ACF Fiorentina (@acffiorentina)
The cause of death was due to a suspected cardiac arrest by natural causes, a Udine prosecutor has said.
Italy legend Gianluigi Buffon was among those paying tribute to his former team-mate, taking to social media to write a lengthy and heartfelt message in Astori`s memory.
A post shared by (@gianluigibuffon) on
Chelsea manager Antonio Conte, who selected Astori while manager of the Italian national team, has also spoken warmly of his former player.
He was a fantastic guy - a great player but especially a fantastic guy. I stay very close to his family in this moment because he was only 31. It`s very difficult to explain this situation, Conte told Sky Sports.
A minute`s silence will be held before all Champions League games this week in tribute to Astori.