Mark Lyson, a judge and referee for many high-profile bouts, was soaking in the atmosphere before he began his official capacities on fight night. He was another face left stunned by the potential collapse of what was certain to be a heavyweight blockbuster.

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World heavyweight champion Daniel Dubois withdrew on Thursday from his scheduled title defence against Joseph Parker on Saturday after falling ill. Dubois, 27, who holds the IBF title, underwent a medical examination in Saudi Arabia and missed a scheduled press conference,