Fashion and tennis will collide for Serena's match

The U.S. Open's most emphatic fashion statement will be made Friday when Bethanie Mattek-Sands and Serena Williams walk the Arthur Ashe Stadium runway.

Suspend your tennis senses for a bit and forget that Williams is going for a calendar year Grand Slam. Forget that she's the No. 1 player in the world and that Mattek-Sands is exactly 100 spots behind her at 101.

This will be a show.

Venus and Serena Williams' fashion sense has occasionally raised eyebrows but always drawn attention.

Those eyebrows have never arched as much as when Mattek-Sands walks on a tennis court. She has made her own extravagant fashion statements for years. Think Betsey Johnson or Lady Gaga in tennis shoes.