Gable Steveson declined to meet Sean Sharaf's gaze at the UFC 331 ceremonial weigh-in, intensifying the psychological sparring that has marked their fight week and leaving the California crowd booing.

The tension between the two heavyweights built all week, with Sharaf repeatedly raising Steveson's alleged past indiscretions and forcing an uncomfortable back-and-forth at Thursday's press conference. At the weigh-in Sharaf came ready to engage, hands raised for a traditional face-off, but Steveson turned his attention to the crowd and refused to acknowledge his opponent.

Steveson borrowed a tactic associated with Jon Jones, who was present on stage, using avoidance rather than eye contact to answer Sharaf's provocation. The tactic produced a viral moment for Steveson, a polarising figure who enters the bout as a massive favorite and carries an Olympic gold medal into mixed martial arts.

Sharaf arrives in the UFC with a record that includes knockout losses in both of his previous appearances inside the promotion, a detail that has shaped expectations for the co-main event. Yet the camp-level hostilities have shifted focus from records to psychology, as fight week turned into a contest of nerves and public image as much as physical preparation.

The face-off required less intervention from UFC officials than anticipated, but the boos from the arena made clear that Steveson remains divisive among fans even as he pursues a world title in another sport. With the bout still to come at UFC 331, the refusal to engage at the scales raises the stakes: the result in the octagon will decide whether the posture was a successful tactic or merely posturing ahead of fight night.