Anthony Ogogo has withdrawn from the undercard of Floyd Mayweather's showdown with Saul Alvarez in Las Vegas on September 14 to concentrate on regaining full fitness.
Ogogo, a bronze medalist at London 2012, was due to make his fourth appearance as a professional next month, but has been forced to pull out of the bill at the MGM Grand due to injury.
"I'm obviously hugely disappointed by this," Ogogo said.
"It was a huge honour for me to be included and it would have been a fantastic experience to be involved in one of the biggest cards in recent history.
"However, going into a fight fully fit and firing on all cylinders is of paramount importance to me.
"This fight just came a little too soon and I wouldn't have been doing myself, Golden Boy or the card justice if I fought when I wasn't 100%."
Unbeaten 24-year-old Ogogo has registered three victories since turning professional and hopes to fight twice more before the end of the year.