Britain’s WBC light-welterweight champion Dalton Smith has been dominated out of his struggle with Alberto Puello via harm.
Smith was scheduled to make his first title defence in opposition to the previous two-time world champion in his hometown of Sheffield on 6 June.
However, the unbeaten 29-year-old, who beat Subriel Matias to become world champion in January, has picked up an issue throughout coaching camp.
Galal Yafai’s unification struggle with Ricardo Sandoval has now been promoted to the top of the bill on the Utilita Arena.
Sandoval holds the WBA and WBC flyweight titles whereas 33-year-old Briton Yafai is the interim WBC champion.
Elsewhere on the cardboard, Josh Padley will defend his European super-featherweight title in opposition to home rival Aqib Fiaz, whereas Ibraheem Sulaimaan faces Ibrahim Nadim for the English super-featherweight belt.
Teenage heavyweight Leo Atang will struggle in his native Yorkshire whereas fellow unbeaten children Adam Maca and Connor Mitchell may also be in motion.
