A.J. McKee sees his fight against Roberto de Souza as a stern test for the both of them. McKee (19-1) meets Rizin lightweight champion de Souza (14-1) on Saturday’s Rizin 40 headliner at Saitama Super Arena just outside Tokyo. The main card will air in the U.S. on Showtime via tape-delay and the fights will take place in Rizin’s ring under the promotion’s ruleset.
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