She's playing well, Azarenka is tough but she's getting the job done.
I never expected gold in singles. I was so happy with my doubles golds. I thought if my career's over I have my gold medal. Now I have everything, literally. I have everything there is to win in tennis.
Serena, obviously, is serving up a storm. Azarenka doesn't even have a look on these points--aces and service winners. Off the ground, they seem relatively equal, except a few "because I'm young" errors from Azarenka.