Chris O'Connell had to retire and Alexei Popyrin, Rinky Hijikata and Daria Saville were all beaten at the Italian Open on a dismal day for Australia.
Rafael Nadal has rallied from a set down to defeat Belgian qualifier Zizou Bergs in the first round of the Italian Open.
Naomi Osaka looked at ease in her opening match at the Italian Open as she scored her first victory over a top-50 player on clay since 2019.