The coach behind Russia's figure skating dynasty rarely speaks to the media, enhancing her mystique as a guru who produces a line of teenage stars who can land jumps no other women even attempt. A doping furor around her star pupil has forced Eteri Tutberidze into the spotlight at the Beijing Olympics. She broke her silence on the case against Kamila Valieva on Saturday, telling Russian TV: “We are absolutely sure that Kamila is innocent and clean.”