Summary Naomi Osaka beat Danielle Collins 6-1, 6-0 at the China Open on Tuesday.
BEIJING (AFP) - Naomi Osaka is keen to move on from the "bittersweet" memories of last month s US Open triumph and she did just that with a ruthless display at the China Open on Tuesday.
The young Japanese star thrashed unseeded American Danielle Collins 6-1, 6-0 in just 53 minutes on Beijing s outside hard courts to saunter into round three.
The 20-year-old Osaka, whose maiden Grand Slam was overshadowed by Serena Williams s row with the chair umpire in New York, faces 10th seed Julia Goerges next in the Chinese capital.
Osaka s reputation is growing fast and organisers on Tuesday said that she has booked her place in the season-ending WTA Finals Singapore for the first time.
But the world number six has appeared to struggle with the fall-out from the tempestuous final at the US Open, where Williams branded chair umpire Carlos Ramos "a thief" and later accused him of sexism.
"For me, I don t know, I don t know, the memory of the US Open is a little bit bittersweet," Osaka said on Monday.
"Right after, the day after, I really didn t want to think about it because it wasn t necessarily the happiest memory for me."
