Complex sentence: The vaulting horse was set too low by the Olympic organizers before the women's all-around, and the undisputed favorite for the all-around title, Svetlana Khorkina, fell on her signature vault.
Split into simpler sentences: The vaulting horse was set too low by the Olympic organizers before the Women's All-Around. The undisputed favourite for the all-around title, Svetlana Khorkina, fell on her signature vault.