Swiss Roger Federer will not warm up for the Australian Open at this week's Kooyong Classic, the organisers said on Monday.

World number one Federer, who thrashed compatriot Stanislas Wawrinka to win the title last year, had decided to rest before next week's grand slam at Melbourne Park, tournament director Colin Stubs told reporters.

Aside from missing the 2008 event with glandular fever, Federerhas participated in the event over the last six years, using it as a springboard to three Australian Open titles.