Juventus’ Morocco defender Medhi Benatia cut short a post-match television interview after claiming to hear a racist insult in his earpiece.
The France-born player, 30, was speaking to Italian broadcaster Rai after Saturday’s 1-1 draw with Torino.
“What stupid person is speaking?” said Benatia before ending the interview.
The incident comes a week after another Serie A player, Pescara’s Sulley Muntari, walked off the pitch after claiming he was being racially abused.
Benatia, who is on loan at Juventus from Bayern Munich, has not commented publicly on what happened during the television interview.
The broadcaster has since apologised and promised to find out who made the “unacceptable” comments.
“Rai is sincerely saddened by the deplorable episode of racism involving the Juventus player during the broadcast of Champagne Football,” it said on Sunday, adding that the insult had not been heard by the viewers.
Benatia has made 17 league and cup appearances for Juventus, who are closing in on a sixth successive Serie A title and are in the Champions League semi-finals.
Meanwhile, Muntari was an unused substitute as relegated Pescara lost 1-0 at home to fellow strugglers Crotone on Sunday.
The former Portsmouth and Sunderland player was cleared to play after a one-match ban he received for protesting against racist abuse in last weekend’s match at Cagliari was overturned.
Muntari was initially booked for dissent, then received a second yellow card for leaving the field.
Before the ban was overturned, former Tottenham striker Garth Crooks called on players in Italy to strike in protest against Muntari’s punishment.