Bellator's season-six welterweight tournament opened with a bang on Friday at Bellator 63, but the night's quickest finish belonged to undefeated 23-year-old David Rickels.

Facing off against late replacement Jordan Smith, "The Caveman" needed just 22 seconds to find his mark with a blistering left hook that sent Smith reeling back to the fence. Rickels swarmed, uncorking a series of rights and lefts before sealing the victory with a vicious trio of uppercuts.

"I clipped him, and I saw he was hurt," Rickels declared in his post-fight interview. "He buckled down, and I always look to finish. A couple of good uppercuts after that, and it was goodnight."

Rickels (10-0) has now finished eight of his ten professional wins and is 4-0 under the Bellator umbrella. He is slated to fight Karl Amoussou (14-4-2) on May 4, 2012 at Bellator 67's welterweight semifinals.

Check out video of Rickels' TKO finish below.