Last year, Zvonareva told the WTA website that she wanted to recover her previous fitness and "play tennis again - even if it's just for fun."
"I always believe in myself," she said. "I don't care about what everyone says. ... I know if I can play my best tennis, I can beat anyone on the other side of the net. That's what I'm going to try to do on Saturday. I never look at any odds or comparisons. It's not important to me."