Barry Hearn, the founder of Matchroom Sport, is getting tired of the verbal assaults from WBC heavyweight champion Deontay Wilder (40-0, 39 KOs).
In the last few days, Wilder has been tearing apart Matchroom and their superstar fighter - IBF, WBO, WBA, IBO heavyweight champion Anthony Joshua (21-0, 20 KOs).
The two sides were negotiating for months, to reach an agreement for a showdown in the fall.
But earlier this week, the World Boxing Association gave Joshua a 24 hour period to finalize a deal with his mandatory challenger, Alexander Povetkin of Russia.
Wilder erupted in anger at the widespread headlines of Povetkin securing the fight.
But according to Hearn, there is no reason for Wilder to be angry - because his company placed a contract on the table for a unification with Joshua in April 2019 - with Wilder receiving a purse of $15 million.
"Don't give me any rubbish," Barry Hearn told Sky Sports. "You either want the fight or you don't want the fight.
"AJ is giving you the opportunity. Paying you $15m to live the dream and find out how good you are. We are committed. We've got Wembley booked. And if it's not Wilder, it's got to be someone else…"
To get there, Joshua has to defeat Povetkin, a 2004 Olympic gold medal winner and a former WBA world champion. And his sole career defeat, came at the hands of Wladimir Klitscho in 2013 - by decision.
Back in March, as part of the undercard to Joshua's unification with Joseph Parker in Cardiff, Povetkin brutally knocked out Olympic bronze medal winner David Price.
"AJ has a tough fight against Povetkin," Barry Hearn added. "You saw what he did against David Price, he has fast hands and is as tough as boots.
"Klitschko gave him a beating but [Povetkin] didn't take a backwards step. It's a tough fight and AJ mustn't overlook that."