Claressa Shields vs. Savannah Marshall has been postponed following the death of Queen Elizabeth II on September 8.
The fight is now set to take place on October 15 at the O2 Arena with the entire show expected to remain the same.
The news of the postponement arrived on the afternoon of September 9 after it was confirmed that a number of sporting events would be cancelled this weekend.
All football in Britain was called off and it was expected that boxing would follow suit as the country, along with the world, mourns the sad news.
"The British Boxing Board of Control have decided that all tournaments this weekend will be postponed as a mark of respect to Her Majesty Queen Elizabeth,” read a statement from the British Boxing Board of Control.
“We join a nation in mourning and pay tribute to Her Majesty Queen Elizabeth II, honouring her dedication to our country during her long reign and the legacy she leaves behind.”