Serena Williams did her usual and overpowered her opponent. There is not much to say regarding her game other than wow, powerful. It was a great match, but I would have liked to see Jankovic win the 2nd set to make them play a 3rd. Selfish of me, I know.
Regarding Jankovics game, those double faults, uh. I grieved.
It is amazing to see the second best player on the women's tour struggle with her serve. With a great serve she might have won this match. Instead she gave away critical points with double faults.
Free advice to Jelena:
Lower your toss, put the ball out in front, and shorten the time interval between the toss and hit.