Amir Khan threw water over opponent Phil Lo Greco on Tuesday - reacting to talk about his personal life.
The pair meet in Liverpool on 21 April, when British welterweight Khan fights for the first time in nearly two years.
At a pre-fight promotional event, Lo Greco pointed to Khan's family issues and marital difficulties since losing to Saul 'Canelo' Alvarez in May 2016.
And the former world champion, 31, responded by throwing water at the Canadian, prompting an on-stage melee.