Day seven - US Open

Day seven at the US Open and Caroline Wozniacki beat Maria Sharapova in three sets.

 This was a really good result for Caroline as I did not think she would have fire power to beat Maria.

It was a shocking result for Maria and a certainly a result that I did not see coming but Caroline has been playing for quite well for some time. 

Belinda Bencic beats Jelena Jankovic in straight sets and that this was a great win for Belinda and very much unexpected. 

Before this tournament I had not really heard of Belinda and I think it's good that she is having a strong tournament. 

But I am always little wary of players who have done nothing for the whole tennis year turn up at one a Grand Slam and all of a sudden are able to get amazing wins. 

It will be interesting to see if Belinda can go all the way in this tournament and these days with the women's draw never say never. 

In the men's draw Roger Federer beat Marcel Granollers in four sets and I really think Roger has had a good draw and surprised he dropped against Marcel. 

The surprise of the day was Giles Simon beating David Ferrer in four sets and I was not expecting David to win the title but was expecting him to get past Giles. 

US Open- day nine

Day nine at the US open was all about the bagels... 

Novak Djokovic beat Marcel Granollers in straight sets and he bagled Marcel in the second and the third set. Novak completed this match in under two hours and he will now face Mikhail Youzhny in the quarter finals for a place in the semi final. 

Serena bagled Carla Suarez Narravo in both the first and second set. Serena was obviously still pumped up from her previous match and was not taking any prisoners.

Sadly for Carla this humiliation was probably made worst by the fact that was her 25th birthday and Serena knew!

Some in the crowd where demanding Serena give Carla a game. But in a ground slam match you cannot afford to be so charitable things can change very quickly. 

It's good that Serena was able to maintain her focus. As I have watched one or two of Serena's matches where she starts off very focused then loses it. So I was pleased that she was able to maintain her focus.

Andy Murray beat Denis Istomin in four sets. It was a good win for Andy ad he started a little slow and maybe he was not expecting the match between Serena and Carla to finish so quickly.

However he refocused and won the remaining sets quite comfortably. He will now play Stanislas Wawrinka in the quarter finals for a place in the semi finals. 

Li Na beat Ekaterina Makarova in three sets and Li Na has been in good form. She played well at Wimbledon and has played well here. 

She now faces Serena Williams and they have met nine times and Li Na has beaten Serena once this was about three years ago.

Victoria Azarenka beat Ana Ivanovic in three sets. This was a hard fought win for Victoria but bearing in mind she has had to play on consecutive days this was a good win for Victoria. 

Victoria will now play Daniela Hantuchova in the quarter finals for a place in the semi finals.