Osaka lost to Belinda Bencic 6-3, 6-1 in just over an hour in the fourth round of the first title defense of her career.
The 23-time major champion could end up facing former World number one Victoria Azarenka in a second-round match
Bangladesh court sentences ex-Prime Minister Khaleda Zia to five years in prison on corruption charges
Zia, leader of the opposition Bangladesh Nationalist Party was found guilty of stealing $252,000 from a trust created for an orphanage.
Bangladesh police banned street protests Tuesday ahead of a verdict against opposition leader Khaleda Zia, whose party says more than a thousand of its activists have been detained.