No. 8 heavyweight Roy "Big Country" Nelson does what he does best against Cheick Kongo, earning himself a knockout victory in the first round. Nelson battles hard-hitting Alistair Overeem on the main card at UFC 185 in Dallas, Texas.

Roy Nelson, winner of six straight by knockout, puts heavyweight Cheick Kongo out cold with an overhand right, capping off a string of three consecutive first-round finishes. Big Country takes the Octagon next at Fight Night Abu Dhabi.

Reeling from a devastating loss to Brock Lesnar at UFC 100, Frank Mir was out to prove he deserved another shot at the title. And prove that he did, stopping heavyweight Cheick Kongo via first-round submission.

Cheick Kongo had strung together back-to-back wins before stepping into the Octagon against fellow heavyweight Mark Hunt. But the heavy handed Hunt opened the round with a powerful left hand that stunned the French fighter.

Cheick Kongo may have the classic fighter physique, but it's Roy Nelson who packs that powerful heavyweight punch as he demonstrated in this bout at UFC 159.

A veteran of nearly seven years in the UFC, Cheick Kongo has stood the test of time; the French fighting pioneer now faces Roy Nelson, a jiu-jitsu black belt who has transformed into the most feared KO artist in the division.

Watch the full episode of Countdown to UFC 149: Faber vs. Barao featuring that bout as well as Lombard vs. Boetsch and Kongo vs. Jordan.

Heavyweight veteran Cheick Kongo prepares to welcome up-and-comer Shawn Jordan to the big time as "The Savage" prepares to make a statement to the division.

Watch Cheick Kongo take on fellow striker Pat Barry in one of the wildest fights in UFC® history - for free!

See all the action from the UFC's triumphant return to Japan all over again with the UFC 144: Edgar vs. Henderson replay.

A stoic Mark Hunt discusses his knockout of Cheick Kongo, and makes a surprising request for his next fight.

"Heavy dudes tryin' to knock each other out" - fighters predict the outcome of UFC on FOX: Velasquez vs. Dos Santos.