Tennis greats Martina Navratilova and Lindsay Davenport took Naomi Osaka to task on Friday, saying she had failed to keep to "basic etiquette" after her match against Sorana Cirstea at the Australian Open. https://www.japantimes.co.jp/sports/2026/01/23/tennis/tennis-greats-criticize-osaka/?utm_medium=Social&utm_source=mastodon #tennis #naomiosaka #soranacirstea #martinanavratilova #lindsaydavenport #australianopen