Neymar has sparked controversy with a sexist remark during a post-match rant at referee Savio Pereira Sampaio.
The Brazilian football icon made the comment after being shown a yellow card in Santos' match against Remo.
The word 'Chico' is often viewed as sexist in Brazilian slang and refers to a woman in her period.
Neymar suggested that the referee was acting irrationally as he was menstruating.
The incident has added to Neymar's list of controversies, including missing out on Carlo Ancelotti's Brazil squad for the international break.
He is Brazil's all-time leading scorer with 79 goals, but hasn't played for them since suffering a knee injury in October 2023.
Neymar will miss Santos' next match against Flamengo on Sunday due to the booking.
