Misa has posted this on facebook:
Today has been one of the worst days in my tennis career for me... I went to the doctor and got told i will need to under go surgery on my right knee (my cartlidge is badly worn down). Its in such bad state that it hurts when i walk or even just lie on bed, that i dont even have an option of taking pain killers, cortisone injections or other momentarily pain medicine that could ease the pain until Roland Garros or Wimbledon..
As you can imagine im totally devastated at this moment and dont know what else to tell you guys.. If you have any words of encouragement i could really use some right now..
Sounds like she'll be out for awhile, just when things were picking up again.