Learner Tien delivered a compelling display of his burgeoning talent during his maiden Grand Slam quarter-final, ultimately succumbing to Alexander Zverev at the Australian Open.
The 20-year-old American had aimed to become the youngest man in 34 years to reach the Melbourne semi-finals, but it was third seed Zverev who advanced to his tenth major semi-final with a 6-3 6-7 (5) 6-1 7-6 (3) victory.
