Injury has ruled Dalton Smith out of his WBC junior-welterweight title defence against Alberto Puello on June 6 at the Sheffield Utilita Arena, so the WBC and WBA flyweight title fight between Galal Yafai and Ricardo Sandoval has been promoted to the status of main event. The 29-year-old Smith was scheduled to make the first defence of his title in his home city of Sheffield, England, having so impressively won it from Subriel Matias in January in New York. Puello, 31 and of the Dominican Republic, had lost the same title to Matias in July 2025 but was Smith’s mandatory challenger.