MELBOURNE, Jan ‌27 (Reuters) - Germany's Alexander Zverev remained on track for a return ‌to the Australian Open final after beating American Learner Tien ‌6-3 6-7(5) 6-1 7-6(3) in the Melbourne Park quarter-finals on Tuesday.

The big-serving third seed, who finished runner-up to Jannik Sinner last year, will face either Carlos Alcaraz or ‍Alex de Minaur in the last four ‍in what will be his ‌fourth semi-final at the event.