Roberta Vinci

She says she's "ready for anyone every time."
This is the first time SI has chosen an individual female athlete since 1983.
Nearly every year the U.S. Open Tennis Championships seem to offer some remarkable match, a stunning upset, or tennis at an extremely high level. This year it showcased all three. Another peculiarity is that some of the wildest and best tennis arrives between midnight and 1:30 a.m.
The victory comes just one day after Vinci stunned Serena Williams in the semifinals.
We shouldn't let Williams' loss on Friday diminish what she just accomplished.
We're upset at the upset, but not at these amazing shots.
The underdog has ended Williams' quest for a calendar-year Grand Slam.