This is the UFC on Versus 4 live blog for Pat Barry vs. Cheick Kongo, a heavyweight bout and main event of tonight's event at the CONSOL Energy Center in Pittsburgh.

Barry (6-2) in January defeated Joey Beltran at UFC Fight for the Troops 2. Kongo (15-6-2) fought to a draw in his most recent outing last October against Travis Browne.

The live blog is below.

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Round 1: Barry with a hard kick to the thigh early. Barry rushes in but they break. Probably giving him something to think about. Kongo fires back with leg kicks of his own. Kongo with a combo ending in a right hand. Barry drops Kongo with a right behind the ear. Kongo looks in huge trouble. Barry looking for the finish. Back to their feet, and BOOM, Kongo knocks Barry out with a one-shot knockout. It was an uppercut. Barry went down like he'd been shot, completely unconscious. That was a wild momentum swing, from Kongo on the verge of being KO'd to knocking Barry cold within 20 seconds.

Winner: Cheick Kongo via KO, Rd. 1 (2:39)

Kongo: "I had to win this fight with huge time off from injuries. I'm very happy."
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