Re: Losses that to this day still leave you completely baffled
US Open 2007: Radwanska def. Sharapova
Australian Open 2011: Petkovic def. Sharapova
Yes, she was in terrible form at both tournaments, but both are players she matches up exceedingly well with, and who she should beat without exception. And you know she knows it too, and that she's disgusted that they ever happened.