Tyson Fury stormed out of Thursday's press conference previewing this summer's rematch with Dereck Chisora on July 26.
The all-British heavyweight bout is a WBO title eliminator, with the winner earning the chance to clinch Wladimir Klitschko's belt.
Fury called an early end to the press conference when he promised to knock out Chisora before tipping over a table and storming out of the room.
"Listen, I'm Tyson Fury, I'm the best heavyweight on the planet," BBC Sport quotes Fury as saying. "This idiot is getting knocked spark out and I'm sick to death of this."
The pair's fight will be held in Manchester.
