“A grass court can become confusing unless you don't allow it to,” the Greek said Monday after prevailing, 6-7 (6), 6-4, 7-6 (3).

The 26-year-old American took down Grégoire Barrère 6-3, 7-6 (7) to reach the fourth round of an ATP Masters 1000 for the first time.

Australian Open qualifying is underway in non-traditional fashion this year, with COVID-19 protocols allowing the men’s and women’s events to take place in Doha and Dubai, respectively. Relive some of the most memorable matches from the opening round.