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.
Lo Greco said: “After the Canelo loss you went on a losing streak – family, wife, and then you go out and tweet to the heavyweight champion of the world. What is wrong with you, mate?”
Lo Greco’s reference was to a tweet Khan sent to Anthony Joshua in August 2017. It concerned his own marriage and Khan later apologised to the British heavyweight for sending it.
After security had calmed the clash on stage, promoter Eddie Hearn asked Lo Greco to apologise, while Khan later said his rival’s behaviour would serve as motivation to “give this guy a beating”.
The Bolton boxer, who has won 31 of his 35 professional bouts, has signed a three-fight deal with Matchroom after ending a long-running feud with Hearn.