MELBOURNE– Inspired American teenager Learner Tien outlasted three-time Australian Open runner-up Daniil Medvedev to reach the third round with a 6-3 7-6(4) 6-7(8) 1-6 7-6(7) victory in a late-night epic on Thursday. Qualifier Tien’s hopes seemed to be fading after fifth seed Medvedev saved a match point with an ace in the third set tiebreak as the
