Serena Williams will meet the woman she is about to depose as world number one when she takes on Victoria Azarenka in the final of the Qatar Open on Sunday.

Williams beat third seed Maria Sharapova 6-3 6-2 in the second semi-final, after Azarenka saw off fourth seed Agnieszka Radwanska 6-3 6-3.

Second seed Williams had guaranteed she will take the top ranking next week just by making the last four.

Her victory over Sharapova was the American's 60th in 63 matches.

"Conditions were a little tough," said Williams, 31. "Maria's always playing really well and she's just so consistent, so I'm trying to be consistent as well."

Williams needed just 73 minutes to secure her 10th successive win over Sharapova as the Russian struggled to cope with the 15-time Grand Slam champion.

Defending champion Azarenka has a 1-11 record against Williams and has lost their last eight matches, but she heads into the final as the only unbeaten player on the WTA Tour in 2013.

The Belarusian, 22, retained her Australian Open title last month and had too much for Radwanska in Saturday's first semi-final.

Asked about her improvement over the last year, she said: "I've grown up a little bit. It's maturity and a little more experience. The beginning of last year was a kick start for me to find more rhythm and step up my game.

"I also love it here in Doha and it feels like home, so I am glad I am in the final again."