Victoria Azarenka upset world number one Serena Williams to claim the BNP Paribas Open title in Indian Wells.
The 2012 champion, ranked 15, took advantage of the American's wayward serve and erratic ground shots to earn a 6-4 6-4 win in the Californian heat.
Williams mounted a gutsy comeback from 5-1 down in the second, but it was too late to claim a 70th WTA Tour title.
It was only the fourth time the 26-year-old Belarusian had beaten 34-year-old Williams in 21 meetings.
Williams' slow start
Williams was hoping to be the first female player to win three Indian Wells titles after taking a self-imposed 14-year exile from the event amidst allegations of racial abuse from fans after sister Venus withdrew minutes before their semi-final in 2001.