Pro wrestling icon Bret 'Hitman' Hart was attacked by a crazed fan, while giving an induction speech at the WWE Hall of Fame.
Hart was jointly accepting the induction of the Hart Foundation - a legendary tag team of the 1980s and 90s - alongside niece Natayla Neidhart.
Chaos erupted when a man, wearing rastafarian headwear, charged the ring and tackled Hart, 61, to the canvas.
Dozens of WWE talent, who were ringside at the Barclays Centre in Brooklyn, quickly stepped in to ensure there was no damage done to Hart or Neidhart, who had also fallen to the floor.
Former UFC heavyweight contender Travis Browne - husband of WWE Raw women's champion Ronda Rousey - was also on hand and appeared to land several hard punches on the man in question.
The attacker's actions drew a large 'a**hole' chant from the fans, as he was escorted away by security.
Footage has emerged of WWE superstar Dash Wilder punching the attacker, as he was led out.
MMA reporter and lifelong WWE fan Ariel Helwani tweeted his anger at what had occurred.
"This is disgusting," Helwani wrote. "Bret Hart is royalty.
"What a scumbag."
Sunday's (NZT) induction was Hart's second, after he received the honour for his individual career in 2006.
Hart and partner Jim 'The Anvil' Neidhart - Natayla's father - were two-time WWE tag-team champions between 1986-91.
Hart is also a five-time WWE champion.
Brad Lewis is in New York and attending WrestleMania courtesy of WWE.
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