Khabib Nurmagomedov has revealed he suffered from seizures the night before his fight with Conor McGregor due to the big weight-cut.
In an incredible tell-all interview with Russia's Channel One, the UFC Lightweight Champion revealed he was unwell leading into the fight.
"The day before the fight I did not sleep at all. I had weight loss and I felt very bad," the 30-year-old said.
"I had seizures and I felt very ill but if I lost I would not tell you about this because that would have been an excuse."
The interview turned explosive when Nurmagomedov blamed the UFC for potentially organising the bus attack incident in April this year which saw McGregor arrested.
"When I think back there are so many questions I don't have the answer to. Did they do it all on purpose?' he asked.
"In my personal opinion, I feel like the bus incident was organised with UFC's help.
"I can't accuse them, but I would give it 70 per cent that they did it.
"He's there with his cameras and his PR team with him shooting.
"An important point: the Barclays Center is a very big arena, a 20,000 person arena, but he knew where we were exactly. How could they have known? And how did they enter the arena with a gang of 20, 30 men? Come on.
"Conor has nothing to do with this media event and has a gang with him but these jokers lead him and everyone to the elevator where our bus is.
"I'm an athlete, but I'm also educated. My brain works pretty well for 15 years of fighting. I haven't taken many shots to the head so I still have brains."
Both Nurmagomedov and McGregor have been temporally suspended by the Nevada State Athletic commission for their involvement in the post-fight brawl that overshadowed the Russian's successful title defence.
A hearing on October 24 will detail if the pair face any more sanctions.
Nurmagomedov $2 million purse is still being withheld by the commission.