"I've felt it (shoulder soreness) since the first day I came, but more so now. Yesterday in the doubles I felt like I couldn't serve at all. I had a lot of pain. I decided to stop because without the serve it doesn't make any sense. It's better to stop and try to recover. If you play, you play 100 percent, not to suffer on the court...Hopefully I'll be ready for the Australian Open. I'll ask for a late start and try to recover. I can playing forehand, backhand, anything except serve."