British number one Johanna Konta was beaten in the Miami Open quarter-finals by an in-form Victoria Azarenka.
Konta, the first British woman to reach the last eight of the tournament, was beaten 6-4 6-2 by her Belarusian opponent in just over 90 minutes.
World number eight Azarenka, 26, is on course for back-to-back titles after beating Serena Williams in Indian Wells earlier this month.
World number 23 Konta, 24, failed to convert any of her five break points.
Konta, making her debut in Miami, would have broken into the world top 20 had she reached the final.