The fight between Artur Beterbiev and Dmitry Bivol for the undisputed 175-pound championship, scheduled for June 1 in Riyadh, Saudi Arabia, has been postponed after Beterbiev injured his knee in training. The IBF, WBC and WBO titleholder ruptured his meniscus, Top Rank announced in a news release. The promotional company plans to stage the light heavyweight showdown before the end of the year. The 5 vs. 5 portion of the show, in which fighters from Matchroom and Queensberry Promotions will face one another, will go on as scheduled June 1 on  DAZN . These are the five fights: Deontay Wilder vs.