British brothers Neal and Ken Skupski lost 6-3 6-4 to Finland's Henri Kontinen and Australia's John Peers in the second round of the men's doubles at the Australian Open.
The pair have never gone beyond round two in Melbourne.
In the women's doubles, Britain's Harriet Dart and Estonian Anett Kontaveit lost 6-2 6-4 to 13th seeds Kirsten Flipkens and Johanna Larsson.
Briton Dom Inglot is in men's doubles action later on Friday.