retired from her 2nd round match against Alize Cornet up a service break 6-5 when she complained of dizziness and nausea on the changeover and was helped off the court by a trainer after she told the umpire she could not continue to play.
Her retirement from the match means that for the first time since 2007 Serena has lost to the same player three times in a calendar year. Earlier this year, Serena lost to Cornet in the semifinals of Dubai and then she lost to her again in the 3rd round of Wimbledon in 3 sets.
Some players just do not match-up well together and perhaps Cornet is Serena's kryptonite. Hopefully, Serena will recover from whatever ails her in time for her birthday on Friday and the China Open which begins in Beijing on Monday.