The defender, 31, tragically passed away on Sunday and the cause of death was revealed two days later
Fiorentina captain Davide Astori passed away due to a cardiac arrest, an autopsy has revealed.
The Serie A club confirmed on their official Twitter account on Sunday that the defender, 31, had tragically passed away.
Fiorentina were due to play Udinese in the Italian top flight but that game - along with all other Serie A fixtures - were called off.
And an initial autopsy has revealed that Astori suffered bradyarrhythmia - meaning his heartbeat got slower and slower - while he was sleeping.