Crystal Palace manager Patrick Vieira was involved in an altercation with a supporter during a pitch invasion following the club's dramatic Premier League defeat at Everton.
Television footage showed him being taunted by an Everton supporter as fans ran on to the pitch at full-time.
The Frenchman appeared to kick out at the fan before being ushered a way by other supporters.
Everton staged a stunning comeback to win and retain their top-flight status.
"I have nothing to say about that," Vieira said when asked about the incident during his post-match presser.
Everton manager Frank Lampard said: "I feel for Patrick.