Serena Williams wins 6-3 & 6-4 against Ana Ivanovic

Serena Williams won her 4th round match agains Ana Ivanovic and advances into the quarterfinals. It was quite an easy win though it did not start good for Williams.

Ivanovic, the 16th seed, struggled on her serve throughout the match at a blustery Arthur Ashe Stadium, successful with only 51% of her first serves and winning only 29% of points on her second. Twenty-nine unforced errors and eight double faults by the Serb made the task easier for Williams, who will face Anastasia Pavlyuchenkova, the 17th seed from Russia, in the quarterfinals

A lone break of the Ivanovic serve proved the difference in the second set and, although the 23-year-old improved as the match continued, the errors remained and Williams completed victory after one hour and 17 minutes when the Serb fired a forehand long.

Venus Williams is out of the US Open in 2nd round

The tennis star Venus Williams retreated in the 2nd round of the US Open. ESPN says the reason given was an "unspecified illness," canceling her second-round match just minutes before it was set to begin

She actually commited to be diagnosticed with the Sjögren's Syndrome, an autoimmune disease which is an ongoing medical condition that affects her energy level and causes fatigue and joint pain.

She entered the tournament as the world's 36th-ranked player after playing just 11 matches this year.

The withdraw now takes her below the top 100´s and is the first time since 1996.

It is still unclear if she will be able to return to the court.