CINCINNATI, Aug 20, 2021 (BSS/AFP) - Naomi Osaka has no regrets over her

stunning third-round loss Thursday at the ATP and WTA Cincinnati Masters to
Swiss wild card Jil Teichmann.

  The four-time Grand Slam champion went down 3-6, 6-3, 6-3 to the world
number 76 and admitted after the upset that her Tokyo Olympic third-round
loss was on her mind.

  "I was doing all I was supposed to do," the Japanese world number two said.
"In the second and third sets I was too defensive.

  "I learned a lot from this match -- I can sleep at night."

  Osaka lost to an opponent who has struggled with several injuries this
season but is now back to health.

  "I knew inside I had this level and I was able to show it on court," said
Cincinnati quarter-finalist Teichmann. "This week things are working out. I
needed to be patient and here I am."

  Osaka stayed low-key throughout the post-match media sessions she says she
dreads, answering questions and seeming to meekly accept thr loss in her
final tuneup for the US Open, which begins August 30.

  "I have high expectations of myself but there was nothing more I could do
to win this match," Osaka said.

  "I'm almost glad I lost as it gives me so many things to work on in my
game. I just hope the results come in time for the US Open."

  Osaka wished she could have won more than $24,200 in prize money to donate
in aid of the earthquake recovery effort in Haiti, her father's homeland, but
tournament officials said they would match her donation.

  "I'm happy, but sad that I didn't go further," Osaka said. "But I think I
raised awareness. I'm glad we were able to contribute something."

  Teichmann took just over two hours to defeat Osaka, breaking the Japanese
star six times, three in the final set.

  "I felt a bit hesitant, and normally I don't feel that way," Osaka said. "I
put myself in this position by choosing not to play that many tournaments."

  Osaka has had a rough ride since withdrawing during Roland Garros over
emotional issues and skipping Wimbledon. She has played only two hardcourt
preparation matches since the Olympics.

  "I'm feeling more confident in myself," Osaka said. "There were times where
I was doubting myself. It's important to remind myself what my strengths are.
I think I did that well in the first set.

  "In the second set, maybe I played a bit more to her rhythm, and also in
the third set, as well."

  Osaka made 41 unforced errors in the match while hitting only 17 winners
while Teichmann struck 21 winners against 29 unforced errors.

  "I'm happy with how I played today," Osaka said. "I didn't give up on any
ball. But my point construction could be a lot better."

  - Tsitsipas rallies to win -

  Men's second seed Stefanos Tsitsipas needed a fightback to tame Italian
Lorenzo Sonego 5-7, 6-3, 6-4. The Greek improved to 47-13, increasing his ATP
season match-win lead.

  Tsitsipas said saving three break points in the first game of the second
set changed the match trajectory.

  "I'm glad I overcame that obstacle," he said. "I stayed in and waited for
opportunities to present themselves. A fighting spirit was very crucial."

  Russian top seed Daniil Medvedev reached the quarter-finals with a 6-3, 6-3
victory over fellow former champion Grigor Dimitrov.

  Medvedev, the champion in Toronto last weekend, will next face Spaniard
Pablo Carreno Busta, who defeated ninth seed Hubert Hurkacz of Poland 7-6
(8/6), 7-6 (7/3).

  Third-seeded Olympic gold medalist Alexander Zverev defeated Argentine
Guido Pella 6-2, 6-3 in 73 minutes while never facing a break point.

  Women's top seed Ashleigh Barty of Australia powered into the quarter-
finals 6-0, 6-2 over Victoria Azarenka.

  Barty improved to 13-1 over top-20 opponents this season and will next face
off against fellow French Open champion Barbora Krejcikova, who beat Garbine
Muguruza 6-1, 6-7 (5/7), 6-2.