Williams was broke as early as the second game but managed to break back in the eighth to take the first set to a tie break. In a tense affair, it was the German who was able to win 7-5 to take an early advantage.
The second set followed a similar pattern, but it was Williams who was to break Kerber’s serve in the second game. However, the German broke back in the sixth game and once again the set would be decided via a tie break. Once again Kerber seized on a number of unforced errors being produced by Williams to win it 7-5 and seal a straight sets win 7-6, 7-6.
The American will kick herself as she only managed to win 3 of a possible 9 break points and hit 36 unforced errors throughout the match. In comparison, Kerber had 3 break point opportunities and managed to win all of them to book a place in the last eight against number one seed Victoria Azarenka from Belarus.
Elsewhere, Kim Clijsters turned back the clock and sprang a surprise by beating Serbia’s eleventh seed Ana Ivanovic. After a disappointing Wimbledon campaign earlier in the year, Clijsters proved the doubters wrong by making the Quarter Finals with a straight sets win 6-3, 6-4 in less than one hour. The Belgian will now meet Russia’s number three seed Maria Sharapova for a place in the Semi-Finals.