The Brazil international was sent off late in the 2-2 draw in Le Classique after clashing with Lucas Ocampos, who may have overdramatised the incident.
It was Neymar's second yellow card in three minutes, but Edinson Cavani managed to earn Ligue 1 leaders PSG a point with a late free-kick.
Two yellow cards in as many minutes - and Neymar is OFF! pic.twitter.com/fZkKDYYU2Y— Goal (@goal) October 22, 2017
Neymar will face a further one-match suspension if he commits the same offence before the end of the Ligue 1 season.