US Open win against Serena was bittersweet: US Open champion
Japanese tennis player Naomi Osaka, who beat Serena Williams to lift her maiden Grand Slam title at the US Open 2018, said that her victory in the final was "bittersweet". "Like right after, the day after [the final], I really didn't want to think about it because it wasn't necessarily the happiest memory for me," Osaka added.