"Jiri is a fake samurai. You can't become a samurai just by reading a book. If you are a samurai, you need to adopt their way of life and be committed to it for years, not the last two or three years. That's why I said he's a fake samurai," Yahoo Sports quoted Rakic as saying.
Earlier, Rakic turned to Prochazka to find out which of them is the king of Europe.
Recall, the fight between Rakic and Prochazka will take place on the night from April 13 to 14 in Las Vegas as part of the UFC 300 anniversary tournament.