LAS VEGAS (Ticker) -- Sugar was too sharp for Shannon.

"Sugar" Shane Mosley remained unbeaten as he hammered Shannon Taylor for five rounds Saturday night and retained his WBC welterweight title with a one-sided technical knockout.

From the opening bell, Mosley was too much for the previously unbeaten Taylor. He scored the bout's only knockdown with a thunderous right hand late in the first round and pounded Taylor's body thereafter.

"I wanted to break his body down to take away his power, and that's what I did," Mosley said.

In the final seconds of the fifth round, Mosley sandwiched a left hook to the body between hard rights to the head that had Taylor stumbling back to his stool following the bell.

After conferring with the ring physician, referee Vic Drakulich stopped the bout before the bell to begin the sixth round.

Having won every round on all three judges' scorecards, Mosley improved to 37-0 with 34 knockouts as he did nothing to diminish his standing as the best pound-for-pound fighter in the world.

Taylor came in with a mark of 28-0-1 and 20 knockouts but had no answers for Mosley's speed or power, both of which drew oohs and aahs from the crowd.

"You can't call yourself the best if you don't fight the best," a dejected Taylor said afterward. "He's super sharp."

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