Ryan Garcia is willing to do whatever it takes to beat Devin Haney on Saturday night, including bending the rules.
Haney and Garcia haven't minced their words throughout the build-up.
In the lead-up to fight night, both men have threatened to 'kill' each other in the ring and their bitter feud isn't letting up days before they duke it out at the Barclays Centre in New York.
During the open workout on Wednesday evening, Garcia launched into an expletive tirade, during which he threatened to 'bite Haney's ears off', Mike Tyson style.
"I'm going to kill him. I don't care what happens in this ring," Garcia told the DAZN broadcast team.
"If he ain't out f*ing face-first then I did something wrong.
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"If I've got to elbow that motherf***er, break his shoulders then I'm going to do it.
"If I have to bite both of his ears off, I am."
Concerns have been raised about Garcia's mental well-being after a litany of bizarre social media posts over the past few weeks, ranging from conspiracy theories to a video claiming he was dead.
Mauricio Sulaiman informed talkSPORT.com last month that the WBC, who are sanctioning the fight, were in direct talks with the New York State Athletic Commission (NYSAC) regarding Garcia.
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The NYSAC later requested that he undergo a mental health evaluation ahead of his WBC super-lightweight world title fight.
Garcia claims he passed those tests 'with flying colours' and has been officially cleared to fight.
"I got mentally evaluated on a Zoom call by the NYC commission and I passed with flying colours," he added.
"And then they said all your tests have come out perfect, you have no drugs in your system, you are perfectly fine."
Asked whether his recent social media activity is just one 'big sell', Garcia responded: "No. It's important things that I'm dead ass serious about.
"But again, I'm also in the middle of the promotion of a fight so s*** if it sells, it sells.
"At the end of the day, I know what I'm doing."
Devin Haney vs Ryan Garcia will be live on talkSPORT from 4am on Sunday morning.