"I want to apologize to my fans," said Yamamoto. "I must recover now over the next six months. If I were Joseph, I'd be angered by the sudden cancellation of our fight. I want to apologize to Joseph Benavidez"
"It's very disappointing that my chance to fight Kid has disappeared suddenly," commented Benavidez.
Dream 5 will be headlined by the Lightweight Grand Prix Finals.