Milan: Thousands of Napoli fans are set to show their support for racism victim Kalidou Koulibaly by donning masks of the defender when the Serie A title challengers host Carpi today.

France-born Senegal international Koulibaly was the victim of monkey chants during Napoli's 2-0 win at Lazio on Wednesday when the referee, in accordance with league regulations, halted the match to demand a stop to the abuse.