George Groves must travel to the United States for his shot at WBC champion Badou Jack.
Groves became mandatory challenger for the WBC supermiddleweight crown after defeating Christopher Rebrasse, but Anthony Dirrell made a voluntary defence against Jack, forcing the Londoner to wait for his third crack at a world belt.
After Jack beat Dirrell in April, Groves's representatives Sauerland Promotions had hoped to win a purse bid, but that has now been cancelled after Sauerland and Jack's representatives Mayweather Promotions were able to strike a deal.
James DeGale, previously beaten by Groves, is ready to create his own slice of history this weekend in his bout with Andre Dirrell for the vacant IBF super-middleweight crown in Boston.
The Londoner is hoping to become the first British boxer to win a world title to go with his Olympic gold medal.