The absolute heavyweight champion of the world, Oleksandr Usyk, is at the top of the P4P classification after defeating British boxer Tyson Fury, according to The Ring. A Ukrainian boxer topped the ranking of the best pound-for-pound fighters. In the previous version of the ranking, he was in the third position. Usyk moved up two spots to the top with his title as the undisputed heavyweight champion. He surpassed Japan’s Naoya Inoue and American boxer Terence Crawford. Inoue recently became the undisputed champion in the super bantamweight division, while Crawford collected the WBC, WBO, and W…