Don't compare Anett with Ana in terms of whom have them defeated, because Anett has 2 long years of matches more than Ana. Ana didn't play yet against Putintseva, Vickery, Bouchard or Sharipova, so you could make a comparison. Even if she would have did, it wouldn't be relevant yet, as she's almost 3 years younger than all of them. She's 14 and a half years old, for Christ sake. Which girls of her age defeated top juniors?
I guess you wanted to name Anett when talking about almost losing to Zimmerman and losing on the pro circuit
Let's take Gonzalez, she's a 18 years old, 3 years and a half older than Ana, with a career high of #5, based on points obtained from clay tournaments. I know she's out of form, but isn't it impressive for Ana to have a 3-0 H2H against her, all in straight sets, 2 of them being on clay, including a 6-1 6-3 win?
However, as I said yesterday, Anett should get an easy win.