Khabib Nurmagomedov has revealed in an interview on Russian TV that he suffered seizures in the build-up to his fight against Conor McGregor at UFC 229.
"I slept very well," said the Dagestani when asked how he felt on the night before the fight.
"Because the day before the fight I did not sleep at all. I had weight loss and I felt very bad."
The unbeaten 30-year-old has had issues before with making weight for the 155lb division.
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.
However after the weigh-in everything was good. The main thing was my psychological attitude.
If you are not psychologically ready then your physical training will not help you in the fight.
I worry like any other fighter – the whole world is watching us. I'm not worried that anyone can beat me, I worry only about what I can lose. I am 30-years-old and the years have passed very quickly.
Victory, defeat, all of this is not as important as the good things in life.
The UFC lightweight champion added that it was McGregor's disrespect which led to the scenes immediately after the fight.
"I did not know whether I would win or not but I was confident in my abilities. I did not expect such provocation from him though.
"When I won I wanted to make him understand that you cannot say things like that.
"Trash talk has changed the game - we will change it back.
"Every opponent shook my hand except him - he did not shake hands. He himself unleashed this war."
Photo by Stephen McCarthy/Sportsfile