Everton’s stirring comeback from 2-0 down ensured their Premier League survival and was followed by a pitch invasion at full time.
Video has since emerged of Vieira appearing to kick a fan to the ground after being followed and harassed.
The 45-year-old Frenchman was known as a fiery midfielder in his playing days with Arsenal.
The incident follows a spate of others at grounds across England in recent days, with one Nottingham Forest fan being arrested after headbutting Sheffield United striker Billy Sharp.
Crystal Palace are no strangers to altercations with fans, either - in one of the most notorious moments in Premier League history, Manchester United Eric Cantona was suspended for nine months for his karate kick on a Palace fan.
Should Vieira face sanction for his actions, or were they justified?
