LONDON, July 5: Four-time champion Serena Williams will face Poland’s Agnieszka Radwanska in the Wimbledon final on Saturday. The 30-year-old American, roared into a her seventh Wimbledon singles final with a 6-3, 7-6 victory over Victoria Azarenka while Agnieszka Radwanska became the first Polish Grand Slam finalist for 73 years as the world number three cruised to a 6-3, 6-4 win over Germany's Angelique Kerber in the semifinals on today.

Serena, contesting a 21st Grand Slam semifinal, was unstoppable in the opening set as Belarus's Azarenka barely got a sniff of a chance.

However, the second set was a much tighter affair as Azarenka clawed her way into the match, breaking the Williams serve for the first time in the sixth game.

She pushed the four-time champion into a tiebreak and saved a match point when Williams lobbed long but gave her opponent another chance and the American took it with her 24th ace.

Radwanska's first appearance in a Grand Slam final emulates the achievement of compatriot Jadwiga Jedrzejowska, who reached the French Championships final in 1939.

Radwanska deserved her moment of glory on Centre Court after a remarkably composed 70-minute display in her first major semifinal and she could yet leave London as both Wimbledon champion and the new world number one.

Deploying a consistent counter-punching game, Radwanska made just six unforced errors compared to 14 from the more aggressive but unfocused Kerber, who had been attempting to become the first German woman to reach a Grand Slam final since Steffi Graf at Wimbledon in 1999.

Radwanska's victory over Maria Kirilenko in the quarterfinals had ended four years of frustration after she suffered last eight losses at Wimbledon in 2008 and 2009 and three defeats at the same stage of the Australian Open.

With that burden erased from her mind, Radwanska was able to play with freedom against eighth seed Kerber -- once she recovered from an early break in the third game.

Radwanska immediately retrieved that break and then broke for a 5-3 lead thanks to a pair of crucial Kerber miscues on the backhand side.

The Pole closed out the set with a blistering ace that left Kerber rooted to the spot.

Kerber started the second set with a aggressive approach, but if that was an attempt to knock Radwanska out of her stride it didn't work.

Instead, her go-for-broke policy backfired as a series of errors handed Radwanska a break in the fifth game of the second set. Agencies