US Open Women's Final Still Worth Watching, For A Number Of Reasons

It's an all-Italian final at the US Open after Flavia Pennetta and Roberta Vinci each pulled off stunners in the semifinals. AP Photo

We know, we know: It's not what you were expecting.

The US Open women's final on Saturday features not Simona Halep and not Serena Williams. Instead, Italians Flavia Pennetta, who upset the second-seeded Halep on Friday, and Roberta Vinci, who stunned world No. 1 Williams, will go for the title of 2015 US Open champion.

And excuse the finalists if they don't consider the last match of the draw a letdown. The two go way back, the first of their nine meetings happening in 2003. Their most recent meeting, in the quarterfinals of the 2013 US Open, went to Pennetta 6-4, 6-1.

"It's going to be a big thing," Pennetta said.

No argument from Vinci.

"Will be a tough match for both tomorrow," she said. "I think a lot of pressure."

Here's a quick look at some of the key numbers heading into the surprising final match.