'I'm not a robot', says Williams after shock loss in final

Serena Williams on Saturday said she was not a "robot" and could not win every match she played after slumping to a shock defeat in the Australian Open final against Germany's Angelique Kerber.

The world No 1 and top seed was an overwhelming favorite to win her 22nd Grand Slam title at Melbourne Park, but an error-strewn performance handed the German a stunning 6-4, 3-6, 6-4 victory.

It stopped Williams matching Steffi Graf's Open-era record of 22 Grand Slam titles, which will now have to wait at least until the French Open in June.