The seven-time champion's misfortune added to an already dramatic second day in which men's eight-time winner Roger Federer looked set for ...

Two years ago, Djokovic edged Federer in a fifth-set tiebreaker after saving two championship points in the final.

TENNIS WTA TOUR SINGLES STANDINGS:Tennis - WTA Tour singles standings

TENNIS WTA TOUR SINGLES STANDINGS:Tennis - WTA Tour singles standings

TENNIS-WOMEN/OPEN-RESULTS (UPDATE 29):UPDATE 29-Tennis-Australian Open women's singles round 1 results

TENNIS-WOMEN/OPEN-RESULTS (UPDATE 27):UPDATE 27-Tennis-Australian Open women's singles round 1 results

TENNIS-WOMEN/OPEN-RESULTS (UPDATE 26):UPDATE 26-Tennis-Australian Open women's singles round 1 results

TENNIS-WOMEN/OPEN-RESULTS (UPDATE 25):UPDATE 25-Tennis-Australian Open women's singles round 1 results

TENNIS-WOMEN/OPEN-RESULTS (UPDATE 24):UPDATE 24-Tennis-Australian Open women's singles round 1 results

TENNIS-WOMEN/OPEN-RESULTS (UPDATE 23):UPDATE 23-Tennis-Australian Open women's singles round 1 results

TENNIS-WOMEN/OPEN-RESULTS (UPDATE 22):UPDATE 22-Tennis-Australian Open women's singles round 1 results

TENNIS-WOMEN/OPEN-RESULTS (UPDATE 21):UPDATE 21-Tennis-Australian Open women's singles round 1 results

TENNIS-WOMEN/OPEN-RESULTS (UPDATE 20):UPDATE 20-Tennis-Australian Open women's singles round 1 results

TENNIS-WOMEN/OPEN-RESULTS (UPDATE 19):UPDATE 19-Tennis-Australian Open women's singles round 1 results

TENNIS-WOMEN/OPEN-RESULTS (UPDATE 18):UPDATE 18-Tennis-Australian Open women's singles round 1 results

TENNIS-WOMEN-TOKYO:Radwanska closes in on third Pan Pacific Open title

TENNIS-WOMEN/TOKYO:Tennis-Radwanska closes in on third Pan Pacific Open title