Australia’s No 1 beats Andrea Guerrieri 6-2, 6-2, 6-4 after delays

Taylah Preston and Daria Kasatkina bow out after first-round defeats

After having his tournament opener against Andrea Guerrieri postponed until day four, Alex de Minaur had to endure another two-hour rain delay before putting away the Italian qualifier in straight sets.

The world No 7 advanced with a 6-2, 6-2, 6-4 victory to set up a second-round clash with Dutchman Botic van de Zandschulp.