Lee Selby was ambushed by Josh Warrington fans as he left the weigh-ins on Friday afternoon in Leeds.
The Welshman and IBF featherweight champion had just tipped the scales for his world title defence against bitter rival Warrington.
Selby was departing the Millennium Square when a group of Warrington supporters descended on his car and shouted abuse at him and his team.
The incident hardly fazed Selby as he addressed the handbags on social media, saying: Check out these clowns. Ive seen more violence in my kids toy room.
Selby and Warrington go to war on Saturday night in a historic event at Elland Road with the challenger set to enjoy a raucous reception in his hometown.
The winner of the fight will earn a showdown with two-weight world champion Carl Frampton, who confirmed he would be in attendance on fight night.
Warning: Bad language
I dont actually care who wins, Frampton said.
I want to fight the champion either way. All Im hoping is that its a first-round blowout so it guarantees there are no injuries, cuts or broken jaws. I want the champion to come out of it fit.
If I had to choose, I think Im going to go for a Selby victory. Warrington is very determined and may have some success late on in the fight – depending on how Selby has done the weight because hes quite big for it.
People think because of my stature Im more of a brawler but Im a good boxer.
Selby is very skilled but a lot of what he does is flash and doesnt have an effect. Its often for show and theres little in his punches.
I know I could outbox Selby. I definitely know I could outfight him but I truly believe Id outbox him as well.