Former world number one Maria Sharapova fell 6-4 6-4 against Japanese number one Naomi Osaka in the first round at Indian Wells on Thursday.
It is a second opening round loss in succession for the 30-year-old after she was knocked out of the Qatar Open last month, reports BBC.
Sharapova made six double faults, won only 25 per cent of her second-serve points and had her serve broken five times.
Osaka, 20, the world number 44, wrapped up victory in 95 minutes.
"I wanted to do well here and not just because I won this event a couple times," said Sharapova, who won the Indian Wells title in 2006 and 2013 but was unseeded for this year's event, having dropped to 41 in the rankings.
"I would have loved to stay longer it is just not going to happen this year."
