Brandon "Bam Bam" Rios lived up to his nickname by rallying from a slow start to clawhammer Miguel Acosta in the 10th round of a vicious firefight at the Palms Casino Resort in Las Vegas, Nevada.

Rios, 134 1/2, charged Acosta from bell to bell with limited success early on, but he eventually caught up to his frail opponent and scored the kind of stoppage that simultaneously thrills and disturbs. By Carlos Acevedo