Top seed Serena Williams says Maria Sharapova "has nothing to lose" when the pair meet in the Australian Open final on Saturday.
The Russian has a 2-16 record against Williams and has not beaten the American since 2004.
But Sharapova says she has "confidence" despite her "terrible record" and will do everything she can to get the title.
Watch live coverage of the Australian Open Women's final, Saturday, 31 January, 08:25 GMT on BBC Two and the BBC Sport website.
Available to UK users only.