In January 1994, the US ice-skater Nancy Kerrigan was clubbed in the knee shortly after a training session, putting her Olympic hopes in jeopardy. To the shock of America, the plot was traced back to the entourage of one of Nancy Kerrigan's rivals, Tonya Harding. In 2012, Kerrigan's coach, Mary Scotvold, gave her first interview about the attack to Sporting Witness.

(Photo: Tonya Harding (left) and Nancy Kerrigan (right) during practise at the 1994 Winter Olympics. Credit: Getty Images)