The long-awaited fight is finally here.

On tonight's new episode of "The Ultimate Fighter 10," final IFL heavyweight champion Roy Nelson welcomes Kevin "Kimbo Slice" Ferguson to the UFC octagon for the first time.

Check out a sneak peak of tonight's episode, which airs at 10 p.m. ET/PT on Spike TV, after the jump. Then, stay tuned to MMAjunkie.com tonight for complete show coverage.