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. I didn't get him at the end. I would have said, 'come in with us' - although he might not have wanted that.
"Of course he ran 80 yards across the pitch and it's not easy."
On the pitch invasion, Lampard added: "It was pure elation of fans who have come on the pitch after avoiding relegation.
"If it is done in the right way let them stay on the pitch, let them have their moment. As long as they behave, no problem."
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