7. Fedor Emelianenko vs. Mirko Cro Cop
It's been dubbed as one of the most important fights in mixed martial arts history and is arguably the biggest heavyweight showdown of all time.
Two-time K-1 World Grand Prix runner-up Mirko Cro Cop made his way up the ranks of the mixed martial arts circuit in Japan, eventually taking on PRIDE heavyweight champion Fedor Emelianenko for his title in 2005.
While the consensus believed the longer the fight stayed on the feet, the more likely Cro Cop could soon find the knockout finish opposite of the famed Russian fighter.
Emelianenko engaged Cro Cop blow for blow for three rounds, attacking with fast hooks inside the pocket.
Cro Cop had his moments, attacking with powerful jabs, straights and kicks to the body that damaged the heavyweight stalwart, though Emelianenko was able to keep the Croatian on his heels for the entire match, walking away with the well-deserved decision win.