David Haye has finally accepted Shannon Briggs' challenge after a scuffle at Anthony Joshua and Charles Martin's weigh-in.
A melee interrupted the weigh-in as Joshua and Martin concluded their preparations before Saturday's IBF heavyweight title fight, live on Sky Sports Box Office.
Briggs and Haye needed to be separated and exchanged insults in the latest chapter of their rivalry - the American had previously gate-crashed the former WBA heavyweight's press conference to announce his fight against Arnold Gjergjaj on May 21.
Asked if Friday's altercation had convinced him to fight 44-year-old Briggs, Haye told Sky Sports News HQ: "Yes, I think he's talked himself into getting knocked out now.
"The big moron Shannon Briggs - everywhere I go, this guy keeps chasing me around.
"He can fight on my undercard - if he can win, if he can pass the medical, if he can pass the brain scan, then I'll knock him out afterwards.
"His manager called [on Thursday] and I said 'fight on the undercard and I'll fight you after'. He said he wants to do it. So he'll get knocked out."
Haye did confirm that Briggs didn't attempt to get physical as they traded verbals, saying: "No he didn't, he knows not to. Sorry, I'm a bit wound up."
Briggs is a former WBO heavyweight champion who, since a 2010 knockout loss to Vitali Klitschko, has strung together eight victories.
