Great Britain's Liam Broady and Kyle Edmund begin their quest to qualify for the Australian Open on Tuesday.
Broady, 21, faces Uzbekistan ninth seed Farrukh Dustov at 23:00 GMT and Edmund, 20, plays Tristan Lamasine of France in the first of three qualifying rounds.
Brydan Klein, who switched allegiances from Australia to Britain in 2013, is up against Aussie Dane Propoggia.
The women's qualifying starts on Thursday, when Brits Johanna Konta and Naomi Broady will be in action.
The Australian Open is the first Grand Slam of the year and takes place from 19 January to 1 February.