Video: Valter Walker submits Zion Clark at Karate Combat 59

Valter Walker couldn’t get a heel hook, so he took Zion Clark’s neck instead. On Friday night, the streaking UFC heavyweight grappled Clark, who was born without legs, in the main event of Karate Combat 59 in Miami. It was the sort of matchup where fans are unsure what will happen, and that translated early […]