Serena Williams says she is playing near her best as she attempts to win a record-equalling 22nd Grand Slam title when she faces Angelique Kerber in Saturday's Australian Open final.
The American, 34, won three out of four Grand Slam titles last season.
"This is probably the best slam I've played in a year," said Williams, who can match Steffi Graf's Open-era feat.
Britain's Jamie Murray is in the men's doubles final, while compatriot Gordon Reid competes in two wheelchair finals.
Murray, whose brother Andy plays Novak Djokovic in Sunday's men's singles final, takes on Daniel Nestor and Radek Stepanek alongside new Brazilian partner Bruno Soares.