Jermell Charlo gained an eighth-round knockout of John Jackson to join his twin brother as a 154-pound world champion. Jermell Charlo didn’t expect to pursue John Jackson around the ring, but he finally caught up to him in the eighth round and landed a world championship. Charlo was losing on all three judges’ scorecards in the 154-pound title fight when he staggered Jackson with a right hand to the temple, and then followed with two punishing lefts when his dazed opponent turned away to adjust his mouthpiece and failed to keep his guard up. Referee Tony Weeks immediately jumped in to protect the slumped Jackson, who was knocked into the corner turnbuckle, and signaled the knockout 51 seconds into the eighth. In winning the vacated world title, Charlo joined his twin brother as a 154-pound champion two days after the Houston residents celebrated their 26th birthday, as he preceded Jermall Charlo’s successful title defense against Austin Trout. Jackson surprised Charlo early by com