Fourth-seeded Daniil Medvedev needed a medical time-out for a nosebleed before beating Spanish qualifier Pedro Martinez 7-5, 6-1, 6-3 and advancing to the third round. In the next match on Margaret Court Arena, 2016 Australian Open champion Angelique Kerber beat Priscilla Hon 6-3, 6-2 to complete a day-session schedule that started with sixth-seeded Belinda Bencic’s 7-5, 7-5 win over 2017 French Open champion Jelena Ostapenko. On Rod Laver Arena, second-seeded Karolina Pliskova, a semi-finalist in Melbourne last year, advanced with a 6-3, 6-3 victory over Laura Siegemund following two-time major winner Garbine Muguruza’s 6-3, 3-6, 6-3 win over Ajla Tomljanovic. We just played one game on the, let’s say, outdoor court,” Medvedev said. On the men’s side, Ernests Gulbis held off Aljaz Bedene 7-5, 6-3, 6-2.