A ripped and ready David Tua says what motivated him to get into great shape was a fear of dying when he faces off against Belarusian Alexander Ustinov in Hamilton tomorrow night. Tua, 40, tipped the scales at 107.5kg in front of a gathering of media, entourages and other onlookers at the pre-fight weigh in at the Claudelands Events Centre ahead of his career-defining clash tomorrow night.