the head of the wta doubts she wrote it threatening to pull the tour to china. we want to speak to her directly. this cannot be swept under the rug and condoned. joining us now is nbc news correspondent january mack phrase in beijing and pam shriver, espn analyst. former head of the wta. janice, bring us up to date. is there a sign of the tennis star since making the accusation and how are officials and low calling reacting to what the wta said? reporter: it s been nearly three weeks and the mystery is only getting deeper around peng shuai, her whereabouts. since disappearing from public view november 2. now the u.n. is demanding proof of her whereabouts. we have the wta, women s tennis