I think Stacy's tougher than she looks, and there is a possibility she could use her current personal issues as motivation. I don't see her taking out a top-tier fighter, but I think she could hold her own with a lot of girls. (In wrestling terms, I see her as a midcard grappler.) Anna was a professional athlete, but she had to drop out of active competition over a decade ago due to serious back issues including a herniated disc. She also had ongoing problems with her leg that eventually required surgery, so there's no real question that she is no longer in the condition she was in her prime tennis years. When she was a top-ranked tennis player, I'd have considered her an elite competitor, but at this point I think she's gradually faded to about a mid-level talent. As such, I think Stacy has a very solid chance of winning this one.
-JM