Jaron Ennis entered a new weight class recently, but he will stay with the promoter that helped broaden his fan base in the United States. Eddie Hearn’s Matchroom Boxing announced Friday that the former unified welterweight champion has agreed to a multi-fight, multi-year agreement with the company. Ennis, 28, initially signed with Matchroom last spring after the death of his longtime promoter, Cameron Dunkin, in January 2024.