Anything less than 2 medals in women's singles would be dissapointing. The Russina's have recently set expectations very high in the tennis world so it's only natural to want and expect the Russina's to do well at the Olympics.
Happiness is like a cat. If you try to coax it or call it, it will avoid you. It will never come. But if you pay no attention to it and go about your business, you'll find it rubbing up against your legs and jumping into your lap. - William Bennett