Savannah Marshall vs. Claressa Shields has been postponed as England mourns the passing of Queen Elizabeth II.

There will be a large number of cancelled athletic events in England as a result of Queen Elizabeth II’s passing. The fight between Claressa Shields and Savannah Marshall, slated to take place on Saturday from London’s O2 Arena, is one of them.

All competitions and activities this weekend have been postponed, according to a statement from the British Boxing Board of Control on Friday. The event will proviso be moved to the same venue on October 15 by BOXXER.

Undoubtedly, this was Shields’ most eagerly anticipated match in his already stellar career. The current WBO women’s middleweight champion is Marshall (12-0, 10 KO). Marshall’s belt would have been united with the WBA, WBC, and IBF versions of the belt in the bout with Shields (12-0, 2 KO) to establish an undisputed champion in the category.

With a 2012 amateur victory, Marshall is the only woman to ever defeat Shields in a boxing ring. Shields entered the professional ranks after going 64-1 in his amateur career and winning two Olympic gold medals.

Shields is perhaps the greatest female boxer in history after winning world championships at junior middleweight, middleweight, and super middleweight.