The Italian league announced on Wednesday (AEST) that if captains don't wear the standardised armbands - plain white strips with blue borders featuring the words, "capitano," and the Serie A logo - they will start receiving fines.

Fiorentina full-back Cristiano Biraghi says an armband dedicated to Astori worn by captain German Pezzella "represents us and should never be put up for discussion."

"If the league judge fines us we'll pay the fine," Biraghi added.

Astori, Fiorentina's former captain, died in March of a suspected cardiac arrest.

The armband being worn by Pezzella has Astori's No. 13 printed on it, surrounded by symbols of the four historic neighborhoods of Florence.

Roma captain Daniele De Rossi and Atalanta counterpart Alejandro "Papu" Gomez have also been defying the rules by wearing personalised armbands.

De Rossi has been wearing one featuring the words of a chant sung by fans in the Stadio Olimpico's curva sud (southern end).

Gomez recently posted on Instagram a selection of the many armbands he has created and worn, adding that "unfortunately in football today, the players count for less and less."