Sam Stout shows his power knocking out Yves Edwards at UFC 131

UFC : Sam Stout

VANCOUVER — Canadian lightweight Sam (Hands of Stone) Stout knocked out veteran Yves Edwards with a vicious left hook on the undercard of UFC 131 on Saturday.

Edwards toppled backwards and didn't move. Stout (15-4-1) closed for the kill, but held back from punching when he saw Edwards was motionless, his arms outstretched like he had been dropped from 50 storeys.

Edward remained on his back with four people working on him as Stout was interviewed in the cage after the fight. He eventually got up on a stool to the applause of the crowd but needed a helping hand as he was led away.

Edwards (40-17-1) took Stout down earlier but failed to keep him there. As they traded blows on their feet, Stout landed with the deadly hook at three minutes 52 seconds of the 1st round.

Diaz abandons his boxing career for St Pierre talks

Strikeforce welterweight champion Nick Diaz has turned his back on an arranged boxing contest to focus on his MMA career - with a blockbuster clash with UFC champion Georges St-Pierre looking increasingly likely.

Diaz was due to enter the ring to fight former super middleweight world champion Jeff Lacy in the autumn, but the promoter of that fight announced on Monday that the contest will no longer be happening - saying the 27-year-old has "an opportunity of a lifetime" to consider in his MMA career.