CANADIANS went 3-1 on the undercard at UFC 131 Saturday night, including lightweight Sam Stout's knockout against veteran Yves Edwards.

Stout connected with a left hook in the first round and Edwards toppled backward. Stout (15-4-1) went to follow up, but held back when he saw Edwards was motionless.

Edwards (40-17-1) eventually got up on a stool to the applause of the crowd but needed a helping hand as he was led away.

"That is one of the nastiest KO's I have EVER seen!!!!" UFC president Dana White posted on his Twitter account.

The 27-year-old Stout, who is from London, Ontario, celebrated the victory with a backflip in the cage.

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