Tyson Fury 's training partner and former rugby star Sonny Bill Williams was headbutted by his opponent during their face-off.
Williams will fight Barry Hall tonight and the former Australian rules footballer made sure he landed the first blow before the pair even stepped in the ring. Whilst facing off after their weigh-in, Hall ducked under Williams and pushed him back with his head.
Bystanders quickly separated the rivals to prevent tempers from boiling over. The pair then faced off for a second time and tentatively shook hands before Williams pushed Hall away from him.
