Britain's Johanna Konta has broken into the world's top 30 for the first time.
Konta, 24, jumped from 47 to 28 in the WTA world rankings after reaching the semi-finals of the Australian Open, where she was beaten by Angelique Kerber.
The German, who stunned world number one Serena Williams in the final at the weekend, moves up to second.
British number two Heather Watson, knocked out in the first round in Melbourne, has fallen six places to 85.
The full rankings are available on WTA website.