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Video: King Mo knocks out sparring partner inside Floyd Mayweather's gym as Roy Nelson looks on....

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Video: King Mo knocks out sparring partner inside Floyd Mayweather's gym as Roy Nelson looks on. The Bellator light heavyweight attraction just sent a chill up the spine of the rest of the 205-pound bracket (see it here), which kicks off this Thursday night (Jan. 17) live on Spike TV. Lawal held the division strap under the Strikeforce banner and may do likewise for his new employer if he keeps swinging like that.