Tensions ran high as Anthony Mundine and his conqueror Garth Woods were restrained from making an early start to Wednesday night's boxing rematch in Brisbane.
Riled after being called a dirty fighter by Mundine during the pre-fight media conference, Wood appeared to headbutt the the former rugby league player when the pair stood eye to eye posing for photos at the weigh in.
Mundine suffered a surprise fifth round knockout by Wood in their previous bout last December.
It was Wood's reward for winning the Australian version of The Contender boxing TV reality programme last year.
Mundine held an angry Wood by the throat during a shoving match that only ended when support staff jumped in.