Japan's tennis star Naomi Osaka dropped out of the US Open on Monday after suffering straight set losses to Belinda Bencic of Switzerland in the fourth round.
Bencic broke Osaka's serves from the outset. She accurately hit shots deep into the court and from near the net before winning the first set 7-5.
Osaka was unable to come out ahead in the second set. Bencic remained composed and took the set 6-4.
Bencic has now defeated Osaka three times this year.