On stage to show support to his dad, Saunders’ son took things a bit too far when he aimed a punch at Monroe’s private parts and attempted to kick the American as he was dragged away.
Audible gasps came from the crowd as the incident took place ahead of the grudge match at Copper Box Arena in London on Saturday night.
Undefeated WBO champion Saunders puts his belt on the line for the second time in his career as the Hatfield man bids to set up a massive bout with the GGG v Canelo winner showdown Las Vegas.
INCREDIBLE! @bjsaunders_ SON ATTACKS WILLIE MONROE JR AT WEIGH IN!!! ????#SaundersMonroeJr pic.twitter.com/R0TkCoOwqx
— BoxNation (@boxnationtv) September 15, 2017