Britain's Emma Raducanu was knocked out of the US Open as she was beaten ruthlessly by fellow Grand Slam champion Elena Rybakina in the third round.
Raducanu, 22, was aiming for a statement win over an elite player to underline her recent progress, but found herself outclassed in a 6-1 6-2 defeat.
Ninth seed Rybakina pummelled Raducanu's serve, returning with devastating effect to break four times.
"It was a difficult experience facing her when she playing so well. I just feel that in every department she was better," Raducanu told BBC Sport.
Raducanu's slow start on her serve - broken at the first attempt in the match after falling 0-40 down - set the tone for what followed.