Learner Tien defeated Corentin Moutet 7–6, 6–3, 6–3 in the first round of the Australian Open on hard court on 17 January 2025. Tien, a slight pre-match favourite at 1.93 odds to Moutet's 1.98, converted that expectation into a decisive victory, taking the opening set to a tiebreak before dominating the second and third frames. The American's clinical performance saw him progress through the opening round without significant resistance in the latter stages. Tien's composed display suggests he has entered the tournament in strong form and will look to maintain momentum in the second round.