A heavy rainfall occurred just before 15 o'clock local time over the tennis courts in Melbourne, and stayed there for hours. In the end, the organizers saw no other way out than to postpone most matches that were not played on the three main arenas, which have a sliding roof.
Among those affected is Rebecca Peterson.
Earlier on Monday, Johanna Larsson lost by 1-6, 0-6 against Paula Badosa, Spain.
On Tuesday, Mikael Ymer also enters the competition, against the Japanese Yasutaka Uchiyama.